Describe the bug
Server crashed, found this in my crash-reports folder.

Expected behavior
Do not crash.

Game Instance Information:

• Game Version.
  1.18.2
• Are there other mods in your instance?
  600+ Mods

Crash Information(if relevant):
https://bytebin.lucko.me/JcCZxgWQil

Well, there isn't sufficient evidence in the crash log for me to understand the issue. The only thing I could think of, is the fact that a mutable block pos is being passed into canSpawn. I can just hardcode a toImmutable call and that should be fixed. However I cannot guarantee this will fix the issue. The only reason I think this might be it, is the fact that the crash happened at a really low level Java API class instead of a mod. Thanks for the report! Await changes.

Switched to using a different spawn check. If this also causes crashes let us know.