MC-179688Trading with a Cartograph Villager creates hundreds (potentially thousands) of junk files in your world's region folder
The bug
When unlocking explorer map trades with a Cartographer Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
How to reproduce
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager, place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- 1.16 Snapshot versions
- 1.15.2
- 1.14
1.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
Linked Issues
Created Issue:
Trading with a Cartograph Villager creates hundreds (potentially thousands) of junk files in your world's region folder
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager and place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
20w16a
1.15.2
1.141.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
Environment
Windows 10
Attachments4
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager and place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
20w16a
1.15.2
1.141.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager and place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- 20w16a
- 1.15.2
- 1.14
1.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager
andplace the Cartography Table and trade with him until he unlocks the ocean explorer map.- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- 20w1
6a1.15.2- 1.1
41.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager, place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- 20w17a
- 20w16a
- 1.15.2
- 1.14
1.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
![[Mod] Michael Wobst](../../../data/avatars/users/37868.png){kind=small}
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager, place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- 20w17a
- 20w16a
- 1.15.2
- 1.14
1.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager, place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- Snapshot versions (20w16a through 20w18a)
- 1.15.2
- 1.14
1.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
![[Mod] SPGoding](../../../data/avatars/users/44622.png){kind=small}
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager, place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- Snapshot versions (20w16a through 20w1
8a)- 1.15.2
- 1.14
1.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager, place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- Snapshot versions (20w16a through 20w19a)
- 1.15.2
- 1.14
1.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager, place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- Snapshot versions (20w16a through 20w
19a)- 1.15.2
- 1.14
1.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager, place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- Snapshot versions (20w16a through 20w20b)
- 1.15.2
- 1.14
1.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager, place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- Snapshot versions (20w16a through
20w20b)- 1.15.2
- 1.14
1.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager, place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- Snapshot versions (20w16a through Pre release 2)
- 1.15.2
- 1.14
1.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
Windows 10, MacOS
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager, place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- Snapshot versions
(20w16a through Pre release 2)- 1.15.2
- 1.14
1.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager, place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- 1.16 Snapshot versions
- 1.15.2
- 1.14
1.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
The bug:
When unlocking explorer map trades with a Cartograph Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
Steps to reproduce:
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager, place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- 1.16 Snapshot versions
- 1.15.2
- 1.14
1.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
The bug
When unlocking explorer map trades with a Cartographer Villager, a region file is created for every chunk the game tries to spawn the respective structure. Each region file contains a single empty chunk and takes just a few KB. For the arbitrarily chosen seed "villager"; 30+ files are created when unlocking the Ocean Explorer Map, and 900+ files are created when unlocking the Woodland Explorer Map. If you are unlucky and the nearest woodland mansion is further away, you easily get 1000+ files.
How to reproduce
- Make a creative world with the default world generator. Seed doesn't matter but I used the seed "villager" in the screenshots.
- Open up the folder of the world you just created and go into the region folder. You should see just a couple of region files as you would expect. In my case there is 6.
- Go back into the world, spawn a villager, place the Cartography Table and trade with him until he unlocks the ocean explorer map.
- Now check the region folder again and there is a bunch of small region files. In my case there are now a total of 39 region files, most of which are just a few KB in size and containing a single empty chunk. This can also been seen in an attached screenshot.
- Continue trading with him until you unlock the woodland explorer map. The region folder now has 939 files where pretty much all of them contain a single empty chunk. I have attached a screenshot showing the region folder in this stage as well.
I assume this is happening because the game is checking potential locations for a Monument/Mansion until it find a valid location, and the chunk and region file is created for each location it checks.
Unsurprisingly, using the /locate Monument and /locate Mansion commands has the exact same results as trading with the villager.
Some versions I tested that have this bug include:
- 1.16 Snapshot versions
- 1.15.2
- 1.14
1.13 has a less severe variation of the bug where only the region file where the structure succeeds at generating is created. Here the file contains a single otherwise empty chunk with some structure start info. This isn't nearly as bad as the newer versions, but still creates an unnecessary file.
1.12.2 doesn't have the bug. No region files are created with this version.
Windows 10, MacOS
I think the game should read data from Seed Map in ChunkBase instead to prevent this bug from happening, although this tool is third-party.
![[Bot] Arisa](../../../data/avatars/users/43007.png){kind=small}
Duplicate of MC-179688
I was able to reproduce this in 20w18a using the provided reproduction steps (trading with a cartographer villager). Also, I reproduced this on MacOS, so this isn't specific to Windows.
Can this still be reproduced in 20w45a?
Confirmed for 20w45a, though not nearly as bad, Same seed, ocean explorer map generated 6 files, and woodland generated 22.
I could reproduce this with the ocean explorer map in 1.17, however upon trading for the woodland explorer map no additional .mca files were created. Total files were ~30-40. I unlocked both at the same time, maybe thats why.