Passive mobs like villagers, cows, pigs, etc. keep disappearing. (When I leave the area which they are in). Despite the many attempts of naming them and enclosing them in lit, enclosed areas, the somehow keep vanishing. I'm not sure if this because of another bug which I've come across, which is the player somehow able to somehow jump through solid blocks.
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We're tracking this issue in MCPE-21416, so this ticket is being resolved and linked as a duplicate.
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