Description of the issue:

When I create a Create mod contraption, and use an Auto Chisel, the moment I tell the game to make the contraption a moving part, the game crashes. When I try to reopen the world, the game does not immediately crash again. When I again incorporate the Auto Chisel into a Create mod contraption, the game crashes.

Minimal work to reproduce the issue: Start a new creative minecraft world. Stack a Create:Creative Motor, a Create:Mechanical Bearing and a Chisel:Auto Chisel. Click the Mechanical Bearing to turn the blocks into a Create Contraption. Your game crashes. Screenshot precrash https://imgur.com/a/uh5vTRj from similar issue with Immersive Engineering.

What I think happens, based on my interpretation of the crashlog, when I click the bearing, Create tries to render a simplified version of the connected blocks. The Auto Chisel for some reason is not able to do that.

Crashlog:

https://gist.github.com/abovearth/27ae32fda0c3ff313d959125dd3ea495

Versions & Modlist

Minecraft 1.16.5
Forge 36.2.0
Chisel-MC1.16.5-2.0.1-alpha.4.jar
CTM-MC1.16.1-1.1.2.6.jar
create-mc1.16.5_v0.3.2
flywheel-1.16-0.2.3

flywheel is a Create dependency

Link to the issue on the Create Repo

Creators-of-Create/Create#2150