Cloning two single chests from source creates double chest at destination
The bug
When using /clone to copy chests, they will merge if possible, disrupting the arrangement of the original set of chests.
How to reproduce
- Facing west, place two chests to form a double chest
- Place another chest to the left of it
- Break the right half of the double chest, leaving you with two adjacent single chests
- Stand on top of the left chest
- Run this command:
/clone ~ ~ ~ ~ ~ ~1 ~ ~1 ~
→
The cloned chests one block above have merged instead of remaining separate
Created Issue:
Cloning two single chests from source creates double chest at destination
The bug
When using /clone to copy chests, they will merge if possible, disrupting the arrangement of the original set of chests.
How to reproduce
- Facing west, place two chests to form a double chest
- Place another chest to the left of it
- Break the right half of the double chest, leaving you with two adjacent single chests
- Stand on top of the left chest
- Run this command:
/clone ~ ~ ~ ~ ~ ~1 ~ ~1 ~→
The cloned chests one block above have merged instead of remaining separate
Added Linked Issues:
relates to
Added Affects Versions: 1.12.0.2 Beta
Added Affects Versions: 1.13.0.2 Beta
Added Affects Versions: 1.14.0.2 Beta
Added Affects Versions: 1.14.0
Added Affects Versions: 1.14.1 Hotfix
Added Affects Versions: 1.16.0.51 Beta
Added ADO: 240365
Added Affects Versions: 1.16.100.60 Beta
Added Affects Versions: 1.16.201 Hotfix
Added Affects Versions: 1.17.2 Hotfix 1.17.20.20 Beta
Added Affects Versions: 1.18.2 Hotfix 1.18.10.26 Beta
Added Affects Versions: 1.19.70 1.19.80.21 Preview
Added Affects Versions: 1.21.60.28 Preview
Seems like this is caused by pairx/pairz block data. To fix that bedrock should implement large chests like java does, with a left/right block state. The current implementation causes other issues too like MCPE-44173, and makes chest placement awkward

I personally wouldn’t consider this a bug. The chest only become a double chest when they are next to each other in the source location.
When you clone the chests from 2 different location not next to each other they will not attach until the game is reloaded. This could be considered a bug. Never the less I have to say cloning double chest in one way or another is extremely buggy.
i have had trouble with them crashing like explained in
MCPE-98511Tho someone said it’s fixed in one of the latest betas.