Mobs spawned from spawners despawn when the player moves more than 54 blocks away from them

Works correctly. 1.16 added mob despawn mechanism when player is more then 54 blocks away.

There was nothing in the 1.16.0.51 changelog about monsters spawned by spawners no longer having persistence by default. I wonder monsters spawned by spawn eggs and summon commands also lack persistence now?

Mobs spawned from spawn eggs and the summon command still have persistence.

The reason people thought that mobs do not despawn from the spawner is that old despawn mechanics will not despawn all mobs at once, instead only 1 mob is chosen to despawn when that chuck has been selected and when the player is at 54/56 blocks away. I can see why it seems like it has a persistence behaviour.

Well maybe you’re right Eyeth. It’s also the case that if you are close enough to activate a spawner, then you are also close enough to be targeted by the mob that spawns, and targeting used to give persistence. If it doesn’t now, then MCPE-34032 is also fixed.

Goldenhelmet

That sounds about right. When the player has been targeted, it becomes persistence. I probably didn't notice that part very much since the mobs can't see me by the set up I built.

Thank you for your report!
However, this issue has been closed as Working as Intended.

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