Hi,

If pressing next layer key the game crash.

Nothing to really worry about though, it only happens when no schematic is loaded.

Crash report : https://pastebin.com/PAeh7Pfr

Versions :
LunatriusCore-1.12.2-1.2.0.42-universal.jar
Schematica-1.12.2-1.8.0.167-universal.jar

Steps to reproduce:

1. Single Player (doesn't matter actually)
2. Don't load any schematic just press next layer key, my keybind is on Arrow Up
3. Crash

That's it,
Kryptonien.