In minecraft, an observer should only triggered when a block is updated. Because of this bug, observers can be triggered when a minecraft world is loaded.
The bug can happen if the player places a container(e.g barrel) filled with items on the face of an observer. When the world is then reloaded, the observer will trigger.
This can cause issues for single-use redstone contraptions.
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[Mod] OcelotOnesie
migrated
Thank you for your report!
We're tracking this issue in MCPE-29548, 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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