Done Client Crash: Tesselating block model, mcmultipart

I was trying to use Super Circuit Maker and while shift right clicking on the circuit plate with the screwdriver I crash everytime I load in the game. I'm sure that anyone else who loads in will also crash.

Full crash log:


Actually this has happened to me before and I used mcedit to delete the block that was causing the problem.
Here is a snippet from the crash log for the block location.

Code:

-- Block model being tesselated --
Details:
	Block: mcmultipart:multipart[ticking=true]
	Block location: World: (-499,63,-968)

 

I removed Optifine and the issue went away.

 

Marking as done then, let us know if you need anything else