I pause in my creative world a porcelain melter and just right click on it and the game completly crash and I can't open the world anymore without crash...

https://gist.github.com/Fireztonez/a287df3903a5d8e65bb08729840b4724

Minecraft: 1.12.2
Tconstruct : 2.9.1.65
TComplement : 0.2.3
Ceramics : 1.3.3b
Forge: 14.23.2.2632

Ok, so the fix will be in the next version, nice! I hope is release soon!

Fixed in 0.2.3b.