Minecraft Version

1.20.1

Fabric Version

Quilt 0.21.0

Fabric API Version

qfapi-7.4.0_qsl-6.1.2_fapi-0.90.0_mc-1.20.1

Hephaestus Version

Hephaestus-1.20.1-3.6.3.241

Describe your issue

Very common crash with many mods, but it always seems to be the same crash each time. Disabling either Hephaestus or the other mod fixes the crash. The crash occurs before the game can fully load. I have had this crash occur with anything from Cosmetic Armor to Promenade to Combat Roll, but it is the same one each time. The crash log included came from Cosmetic Armor, but other mods trigger the exact same one; if needed I can get those too.

Crash Report

https://gist.github.com/cybercat5555/6bc71471d669cace5de602f728f91369

Other mods

https://gist.github.com/cybercat5555/4e09290af4bbb1b85273bef392d1c10d

Tried reproducing with just Tinkers?

No

Performance Enchancers

Sodium

Searched for known issues?

Searched open issues

Have you tried this without quilt?

I have not no, is it known that Hephaestus and Quilt don't get along?

I don't support quilt only issues, please make sure this doesn't only happen on quilt or I will close this

You're running the same version of Quilt Loader + QFAPI I was using for #94 and I had a very large modpack with Quilt specific mods so it shouldn't be an issue with Quilt.

Do try with Fabric anyway though and see what happens as Alpha says though since u don't appear at face value to have any Quilt specific mods (correct me i'm wrong).