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• This is a crash. Please upload, Pastebin, Gist or copypaste the whole crash report along with this issue.

• This is a mod incompatibility. If I do this in vanilla Forge with only Et Futurum Requiem installed, it works normally.

Version number of Et-Futurum-Requiem (IMPORTANT)

2.4.3

Describe the issue (IMPORTANT)

Game crashed on startup

Mod list (OPTIONAL)

ArchaicFix
Backhand
Campfire Backport
CodeChicken Core
CoreTweaks
D-Mod
Ears
Electrical Age - jrddunbr's build
Et Futurum Requiem
FalsePatternLib
FalseTweaks
Floatingltems
FoamFix
Leaf Culling
Neodymium
NotEnoughltems
Squidless
TcpNoDelayMod-2.0
UniMixins

Additional Context (OPTIONAL)

I did a bunch of testing myself and it seem like Et-Futurum Requiem has incompatibilities with "ears" mod, I've tried enabling all the mods I have one-by-one until I've enabled ears and it crashed the game

Logs

https://paste.ee/p/w9izr

embeddedt created the Elytra code. Although I'll have to double-check if I can reproduce this later.

This is a mixins/asm related thing, so I think that is probably a job for makamys ;)

This happens because FoamFix loads Ears classes during coremod initialization, and said classes reference ModelBiped. Turn off mc18SkinSupport in FoamFix to fix the issue (it's supposed to get auto-disabled when Ears is present anyway).

Fixed in asiekierka/FoamFix17@41700ec