Version: minecolonies-1.12.2-0.10.334-ALPHA

Actual and expected behavior should be clear from title.
One side note: if I try to re-join the server thanks to vanilla fix my game does nothing besides 'Logging in'.

crash report: https://paste.dimdev.org/uwobuzupuy.mccrash

Steps to reproduce the problem

simple right click works

fixed

Were you holding something in your hand when right-clicking?

makes no difference

That link is broken

I have the exact same error if i plant it the second i try to open the thing up i crash, just simply placed it on a hopper and then tried to rightclick to open ui and poof

Yeah but I can not reproduce it, without a crashlog.

Ok here u go @OrionDevelopment
https://pastebin.com/WCYtmGtE

Oke funny you seem to have missing data in your view.
Can you break the block and place it somewhere else and try again?