Villagers and animals (wich were in a fenced area, that was small enough) despawned with no reason. They despawned all at once (first villagers [also in all other villages I discovered!], second pigs, third sheep, cows and a horse. [wich were in another fenced area than the pigs].
Thank you for your report!
We're actually already tracking this issue at MCPE-47922, so we 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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