hallucination mob issue

[topaz pollen]

im on day 2 of my world i was playing with a friend and when i say day 2 i mean in game day 2 and these hallucination mobs are spam spawning in version 5.1 i added a video so you can see idk how to fix it but its unplayable if you know a fix please say i looked it up and we havent been mining minus FTB ultimine stone we just been running to a plains. so please help fix this survival is messed and keep in mind i was only in creative to see if it was broken in it i play this for content and i cannot do such with it being spammed red screen from this mob

i will add before i updated the pack to v5.1 it was perfectly fine

v5.1 made the hallucinations spam spawn some how

i have another world that was fine

[drifting patio]

We also have the same problem, and it began makin our server lag like crazy.

[weary wind]

Same here! Joined the server to see any hotfixes, the only solution for now is to remove the mod "FathomlessCrimson" from the mod folder within the modpack.

[summer ridge]

multiplayer config is broken

please remove the "Fathomless Crimson" mod

[quaint hedge]

is it fixed in v5.2?

[summer ridge]

fathomless crimson is out of the pack in v5.2

[quaint hedge]

Oh thank god it was bad