In the past week, I have had an error in the application twice while playing in my world. Once I started up my world, all the villagers in the loading chunks had disappeared.

Maybe a world generation limit got violated and all of the chunks data has been restored to an old status?

This may make a duplication glitch work on the bedrock edition.

Thank you for your report!
We're actually already tracking this issue at MCPE-21416, 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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