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Description of the issue:

after placing a create deployer

Crashlog:

https://pastebin.com/5Urg3E0z

Versions & Modlist

minecraft: 1.16.5
forge: 36.0.1
Immersive: 4.2.0-130
create: 1.16.3_v0.3b

Thank you for reporting issues, without people reporting them, they wouldn't get fixed. You're helping contribute to this mod and that is much appreciated <3

I see the issue is closed, but where is the fix?
Thank you,
CM

My bad, I see you have patched it. Thanks!

For anyone else looking:
Grab the new version from CurseForge.