When you put a passive mob in an enclosed space (such as a farm) the animals will all despawn at an unhealthy rate. It's bad for farming and raising animals.
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Illidicia
MCPE-9263
Animals despawn
Resolved
Duplicate
0
Illidicia
migrated
(Unassigned)
Unconfirmed
Tablet - iOS - iPad Air
iOS 8.3
0.11.1
Retrieved
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This issue was reported previously as MCPE-8002; comment your experience there!