Mod Version: 1.20.1-1.1.3
Minecraft Version: 1.20.1
Forge Version: 47.3.3
Connector Version: 1.0.0-beta.46+1.20.1
Players are unable to open containers, teleport, interact with block entities/mobs, and all mobs are stuck.
One of the worker threads is stuck on BlockBehaviour$BlockStateBase.handler$ilf000$etcetera$removeModelOffset here.
Removing this mod fixes the problem.
jstack-output1.txt
jstack-output2.txt
jstack-output3.txt