[MC-136206] Certain mobs still move when more than 32 blocks away from the player

The bug

Ghasts, magma cubes, slimes, fish [...] and all the mob that don't use the traditional random strolling type movement that normal mobs use, can move outside the 32 blocks of range causing lag.

How to reproduce

Spawn some zombies and some slimes
Go in spectator mode
→ Zombies can't move, slimes can

Comments

BisUmTo 2018-08-18T11:14:27Z

Demonstration video
https://i.gyazo.com/6b6fd1ec394dcc0341cdd2eb5c8a280b.mp4

Avoma 2020-12-25T18:11:11Z

Can confirm that this issue is still present in 20w51a.

ampolive 2021-07-04T18:03:45Z

Can confirm in 1.17.1 Release Candidate 1.

ampolive 2021-07-04T18:08:49Z

Tested in single-player, in spectator mode (MC-227635). This affects axolotls, bats, bees, ender dragons, foxes, ghasts, goats, hoglins, magma cubes, phantoms, piglins, piglin brutes, slimes, turtles, vexes, villagers, withers and zoglins. This does not affect fish anymore.

ampolive 2021-10-24T12:29:38Z

Can confirm in 21w42a.

Viradex 2024-08-04T03:00:18Z

Can confirm in 1.21.