I honestly don't know how to recreate this crash but when I tried to link a Occult Gem to a beholder, it didn't do anything at first and then after like 5 seconds the game caught up and I got the linked Occult Gem. When I went into the beholder view my game crashed and anytime I tried reloading the world with xearo's minimap it crashed before I could do anything.

The weird thing is when I tried to recreate it on another world this was never an issue so idk. Kinda niche. wanted to post it.

Initial Crash:
crash-2023-10-27_04.24.31-client.txt

Trying to relog into the world Crashes:
crash-2023-10-27_17.08.08-client.txt
crash-2023-10-27_04.25.55-client.txt

Xearos issue. they shouldnt assume the camera entity is a player at all times, since even in vanilla it can be another mob in spectator mode. report it to them