Hello,
Not sure if this is you or Universal Tweaks. I'm running a heavily modified E2E. I recently removed optifine and replaced with Mixinboot 8.3, vintage fix, and now Valkyrie with all your dependencies. When I add Valkyrie, I crash almost immediately into load. Not sure if this is you or universal tweaks, as they state they are not compatible with mixinbooter 8.3, but, I can load into game without valkyrie.jar.

To Reproduce

Steps to reproduce the behavior:

1. Get Enigmatica 2 Expert.
2. Get mixinbooter 8.3
3. Get vintagefix 0.2.5, universal tweaks 1.6.0 , valkyrie 0.1.3, !configanytime 1.0, red-core 0.2,
4. Using multiMC - Load instance.
5. Crash potentially?

Crash Log: https://mclo.gs/lgJOMsW

Windows 10 Pro
Intel 4790k
32gb RAM
EVGA 3070
Gigabyte Mobo

I ran into this issue as well on a different pack, it seems to be due to RandomPatches loading classes too early, TheRandomLabs/RandomPatches#252. Removing RandomPatches should allow the game to launch.

I think UniversalTweaks loads fine with RandomPatches despite the indicated error in the log, so maybe missing a require = 0 here?

Just tried a brand new install of Enigmatica 2 Expert: Unofficial. Getting the exact same crash.

I removed RandomPatches and tadaa! No crash... Great find ^^
I am not a coder. I know nothing about java or mods. I just know how to report issues with my very old minecraft instances I try to make custom to my liking. Thanks for the help.

Works fine with a minimal mod set, so it‘s a certain incompatibility within the modpack.

Yeah, Random Patch has an unbelievably bad way of replacing the main Minecraft Client class so anything that touches said class will crash.

You can disable it in the Random Patch config, something along the lines of "Patch Minecraft".

Can't really fix that sorry.

*Note: Sorry for the extremely late reply, I just realized that GitHub stopped automatically watching my repo's orgs, so I was never notified of this. *