Stephen Stair
- sgstair
- sgstair
- America/Los_Angeles
- Yes
- No
MC-24114![[Mojang] Searge (Michael Stoyke)](../../../data/assets/gravatar/searge.png){kind=small}
Added Attachments:
Changed Description:
Attached screenshot and minimal world repro. If you stand at the location indicated in the screenshot and save/reload the world, you will hit the bug.
Root cause has been narrowed down to:
Item frame with some contained item at X=0 / Z=0 in chunk
Mounted on block in adjacent chunk
Behind that block, a comparator is sensing the item frameStand in a chunk adjacent to the chunk containing the item frame, save and load the world, and all
entities in the chunk with the item frame will be duplicated a huge number of times.
Added Attachments:
Added Affects Versions: 14w18b
Attaching crash report.
Also attaching log file, which has some nice long stack overflow exceptions that were ignored when loading. Last level load in the log is related to the screenshot.
Still exists in latest snapshot. I noticed the duplication also occurs if you stand in the same chunk in the repro world; there may be some conditions to it as I didn't observe this in a previous repro environment.
I should mention also that we originally discovered this issue accidentally in a multiplayer world: Besides the minimal repro, if you nether-portal in to an adjacent chunk in an area away from spawn (rather than just loading a single player world standing in an adjacent chunk) it also triggers the bug (and may crash the server, I think depending on the number of entities it results in)