Crashes instantly with any mod that changes or adds its own.

Tested with geckolib, azurelib, portinglib and I'm certain MixinItemRenderer is the culprit, as disabling it in the canvas jar fixes the issue but leads to many more. Strangely this issue is nonexistent on the 1.19 version

6ce75ae fixes the crashes.
de97020 adds azurelib and geckolib compatibility.

Thanks for reporting!