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Minecraft Version

1.20.1

The Issue

when creating new world or joining existing one, game crashes.

Steps to Reproduce

create new world wait unitl it 100% then "creating world" then poof game crashes to desktop.

I have messed with mod options a little and the option
graphic
first person model from ON to OFF
I get to play the game, the world generates I can run around do anything, but get to third person... poof game crashes again,
so my suggest is that it has something to deal with the animations

---- Minecraft Crash Report ----
// I bet Cylons wouldn't have this problem.

Time: 2024-10-11 20:30:09
Description: Rendering entity in world

java.lang.NullPointerException: Cannot invoke "yesman.epicfight.api.client.model.AnimatedMesh$AnimatedModelPart.setHidden(boolean)" because "mesh.head" is null

so, how to fix?

You have an outdated resource pack that causes this crash. Please deactivate the resource pack