This happened on my dedicated server when I try to break some cog from the Create mod. It occur randomly but once it occurs I can't break the cog without crashing anymore
Log file:
hs_err_pid6732.log

I have also had a similar problem with other Create blocks. particularly the windmill bearing as it causes the game to crash on a single left click

Confirms it also happens for me and a friend. We have to disable Rubidium for now until this gets fixed hopefully