Hoppers don't pickup items parallel to chunk border
Hoppers won't pickup items from the adjacent chunk side although the item is on the edge of the hopper. The same hopper will pickup items from sides not along a chunk border. Video link included for reference.
Linked Issues
is duplicated by7
relates to4
- Unresolved
Jose Ortiz
- 141
- 43
- Confirmed
- 406721
- Multiple
- Windows 10 Home 10.0.19041 Build 19041
- Hoppers chunk-border
Created Issue:
hoppers don't pickup items parallel to chunk boundary
Hoppers won't pickup items from adjacent chunk although the item is on the edge of the hopper. This only occurs when the hopper shares a chunk border with a water stream. The same hopper will pickup items from another water stream within the same chunk as the hopper. Video link included for reference.
- Unresolved
- Open
- Unconfirmed
- Windows
- Windows 10 Home 10.0.19041 Build 19041
- 1.16.40 Hotfix
hoppers don't pickup items parallel to chunk boundaryHoppers don't pickup items parallel to chunk border
Hoppers won't pickup items from adjacent chunk although the item is on the edge of the hopper. Th
is only occurs when the hopper shares a chunk border with a water stream. The same hopper will pickup items from another water stream within the same chunk as the hopper. Video link included for reference.Hoppers won't pickup items from the adjacent chunk side although the item is on the edge of the hopper. The same hopper will pickup items from sides not along a chunk border. Video link included for reference.
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I think this error is due to the interaction between chunk, they fight over the position of the objects see a https://youtu.be/gCCWrZHDum8
Yes, I already added that to the affected versions a few days ago.
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ΘΣΦΓΥΔΝ : Can you leave a tutorial on how to use your HopperBugsFix solutions? I invite you to Mojira Discord so I can help the mojang team find a solution.
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Note that when testing this issue, it can be complicated by MCPE-99462.
The hoppers in big storage system are affected by MCPE-99462, MCPE-38963 and also MCPE-94491, these bugs may cause the lost of a great amount of items and the need of circular water circuits for automatics storage systems.
Tested and could not reproduce in 1.16.201 Hotfix, so I am resolving this as Fixed based on comments above.
@Jack this Out: this report is about directional inconsistency, not the chunk border problem. Hoppers not collecting items from water streams on chunk borders is tracked at MCPE-99462.
Possibly so, it's difficult to tell from the screenshot alone. Regardless, this report never attributed the inconsistency to chunk borders.
I just re-watched the video from MCPE-92670 that I linked in an earlier comment, and the issue there, too, appears to possibly be due to chunk borders at Y = -1280 to -1281 and Y = - 1264 to Y = -1265. So it's possible this entire report was based on a misinterpretation from the beginning. Whatever the case, MCPE-99462 describes the bug that can actually be reproduce as of the current version.
I've taken another look at the video linked in the comment from July 20 after resolving MCPE-94491. It looks like this may have been a chunk border issue all along, as the hoppers and ice in the video appear to be along chunk borders at Y = -1280 to -1281 and Y = - 1264 to Y = -1265. The chunk border collection problem is tracked at MCPE-99462.
Thank you for your report!
We're tracking this issue in MCPE-55824 and MCPE-99462, so this ticket is being resolved and linked as a duplicate.
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Thank you for your report!
We're tracking this issue in MCPE-99462, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
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Thank you for your report!
We're tracking this issue in MCPE-99462, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
Thank you for your report!
We're tracking this issue in MCPE-99462, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
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Thank you for your report!
We're tracking this issue in MCPE-99462, so this ticket is being resolved and linked as a duplicate.
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Thank you for your report!
We're tracking this issue in MCPE-99462, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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Thank you for your report!
We're tracking this issue in MCPE-99462, so this ticket is being resolved and linked as a duplicate.
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Note: this behavior was described in MCPE-155479, but because that report also described other issues that were already reported it was resolved as a duplicate. This issue is causally unrelated to either MCPE-99462 or MCPE-55824.
Steps to reproduce
- Place a hopper at 2049 100 2049 or -2050 100 -2050.
- Place a column of several blocks of glass or stone on top of the hopper.
- Toss items against each side of the column.
Expected result
The hopper does not collect the items.
Observed result
The hopper collects the items.
Code analysis (from MCPE-155479)
Hopper::_getItemAt() defines a cube fetch range with a side length of 1, and inwards in all axes shrink by 0.0001. The float in C++ is only accurate to 6-7 digits in decimal, so when the value exceeds 2048, the shrinking by 0.0001 does not have any effect. (MCPE-99462 supersedes this bug at chunk borders, so it cannot be observed at X/Z +2048 or -2049.)


Is it still a thing on 1.16.201?
Can confirm for v1.17.10. Create a new creative world, find a chunk border, set up your hoppers on the chunk border, cover with honey block and throw items in. The side facing the next chunk will not take items
I am blocked on a huge project
Happens in 1.17.11
MCPE-155479had an detailed analysis with the cause of bug, which is realated to the unconcise of hopper picking area, can confirm that hoppers in different coordiates are having unconsistant item collecting behavior especially chunk border, which the bug affects gameplay for players, some contraption is unable to use as hoppers are collecting items eventhough a full hitbox block is above them. Moreover, after render dragon being used in all platform in Minecraft Bedrock Edition, chunkborder shader packs are not officially supported, which furthre worsen the gameplay as average player which have no access to these tools are unable to figure out what is the problem existedAffects 1.19.20
Affects 1.19.31
Fixed in https://github.com/SurvivalApparatusCommunication/HopperBugsFix