Raoul Steffen
- HalfInt
- halfint
- Europe/Stockholm
- Yes
- No
1 issues
Key
Summary
Status
Reporter
Assignee
Created
MCL-23790
Changed Description:
The Minecraft Launcher has an interface to log out or switch accounts. But clicking anything in the drop down menu does nothing except close the menu.
However, if I click on 'Skins' first, the menu starts working and I can log out. Still, there seems to be no way to log in multiple accounts at the same time.
![[Mod] Neko](../../../data/avatars/users/92901.png){kind=small}
Most likely invalid due to messing with the world save. Jorgen Nokleby from MC-107367, Jonas Albrektsson from here, and Raoul Steffen from here all messed with the world save in some way.
I encountered the bug in 1.9.4, where it is still present. I can give a better reproduction and a fix that should help find the cause. By my conclusion, it has nothing to do with updating versions and is entirely based on "corrupting" data by deleting parts of it.
Please someone try my reproduction and reopen the ticket if successful.
Reproduction:
1. Start Minecraft 1.9.4.
2. Create a new world, creative mode, Seed -1016733063.
3. Build a Nether Portal, go to the Nether.
4. Teleport to X194 Y73 Z72 and look around so you can see the spawner.
5. Exit Minecraft.
6. From the world folder, delete the "DIM-1" and "DIM1" folder (I know one is for the End, but I don't know which).
7. Restart Minecraft, log into the world.
8. Notice the world regenerates, but the spawner is missing.
Fix:
9. Exit Minecraft.
10. Delete the "DIM-1" and "DIM1" folders again.
11. Delete from the "data" folder the file "Fortress.dat".
12. Restart Minecraft, log into the world.
13. Notice the world regenerates, including the spawner.
Conclusion:
The spawner is generated when the (part of the) fortress first is first added to the "Fortress.dat" file. I expect this will also affect Mineshafts.
Further indication:
I deleted the chunks contining a natural Village with MCEdit. Afterwards, the Village's buildings where regenerated, but there were no villagers. I expect they are also spawned when the Village is first added to the "vilages.dat" file. This may also affect Ocean Monuments and End Cities.
I did not find a way to reproduce this without messing with the world save. That is why I called it '"corrupting" data by deleting parts of it'.
For that reason, I would consider this a minor issue. Nevertheless, if a developer has time to spare, they might be able to make the game more robust against such inconsistencies (that are, data in the "Fortress.dat" file for world in not yet generated or deleted chunks). At least at my team we like to keep these things around for these times.
I belive this is intended behaviour for Single Player worlds. When opening the world, you always get inventory, position, etc. from the player who last had the world open.
If you want users not to mess with each others Worlds and files, they should have separate operating system accounts.
Indeed,
MCL-17206describes the same issue; I would consider this a duplicate.MCL-20048appears to be something different.Why isMCL-17206considered closed? I appears the reporter added the requested files; the issue obviously still persists.Can I provide more information to help fix the issue?
Edit: Sorry, I was confused by newer comments being further up. Should I try provide files and answer the questions on the duplicate?
Can confirm still in 1.21 .
This is also an issue on Linux installations using Flatpak, which places Minecraft in ~/.var/app/com.mojang.Minecraft/.minecraft/ .