Forge 40.2.2
ColdSweat-2.2-b04b.jar

Description:
After respawning my game crashed with this message:

java.util.ConcurrentModificationException: null

Crash Report:

crash-2023-05-14_00.51.52-server.txt

Thanks for the report. Unfortunately, this issue is pretty difficult to track because it only happens in very specific scenarios, but I'll definitely give it another shot.

It was only one minute after creating the world that it crashed so I was pretty bummed out when it happened. Hope it gets fixed nonetheless.