After hotfix 1.16.100, villagers go to sleep then slide sideways across the room, through the walls and disappear. I have reloaded several backups and always get the same results.
I will upload a video when I get it moved over to this device.
I spent a lot of time curing villagers and leveling them up.
Thank you for your report!
We're actually already tracking this issue at MCPE-101202, so I will resolve and link this ticket 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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