Description of the issue:

Game crashing when opening the drill tab in the immersive engineer book, also when searching for it in the creative menu.

Crashlog:

https://gist.github.com/Murr88/8ee403ed8ca818692e062a1fc89e7119

Versions & Modlist

forge-1.16.5-36.1.0
ImmersiveEngineering-1.16.4-4.1.2-129

Update IE, you are way out of date.