I've got a weird crash that breaks in such a way that I can not get a proper error message, it just hangs during loading. It only happens with supplementaries-1.17.1-1.0.0, not with V0.18.1. Selene is V1.11, and loads fine. All other mods are up to date, and forge is 37.1
I've taken a copy of the console and uploaded it here, if it eventually crashes properly and generates a report I'll update with that.

I'll publish a fix soon. It's the same stuff that I fixed on 1.18

fixed