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Description of the issue:

My server crashes and sometimes the client as well.
Only immersive engineering blocks in the world right now are the wires.

Crashlog:

https://pastebin.com/6yvJe9wn

Versions & Modlist

Not sure what IE is but I'm running:
Minecraft 1.15.2
Forge 31.2.31
Mod list for the server can be found above
Client mod list is here: https://pastebin.com/RuM2qEx7

Duplicate of #4111