Passive mobs and name tagged mobs despawn sometime between logging off and logging back on. Over the last two months 13 named mobs have despawned (Fish, Horses, Turtle, Panda, Sheep, Chicken, Zombie, Slime) as well as multiple nameless mobs (Cows/Bees) the bug doesn't seem to effect Dogs or Cats. All mobs that despawned are within 200 blocks of each other and other players mobs don't seem to be despawning. (Note the mobs are not being killed they are despawning)
Not positive on how to replicate the issue but it seems to me having multiple mobs in a small area may be the issue. Mobs don't despawn while playing only between being playing sessions.
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kiizde
migrated
Thank you for your report!
We're tracking this issue in MCPE-144208, 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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