[Crash]: Client at startup

[VsUK]

Steps to Reproduce the Crash

I've been using jei-1.20.1-forge-15.3.0.1 but going through updating mods to latest versions for 1.20.1. So I installed jei-1.20.1-forge-15.12.3.55 & it just crashes the client at start up. I remove & put the old version back & it loads up just fine.

However, the version before .55 jei-1.20.1-forge-15.12.3.54 works fine. The issue is clearly with the .55.

Mod Pack URL (Optional)

No response

Mod Pack Version (Optional)

No response

Extra Notes (Optional)

No response

Crash Report

https://gist.github.com/VsUK/c31a464bdb23baf1247e11441c9c72d6

[mezz]

Thanks for the report!
I am not sure why JEI seems to be involved, it is not in the stack trace at all.

The issue comes from here:
Caused by: org.spongepowered.asm.mixin.transformer.throwables.InvalidMixinException: @Shadow field vanillaKeyMapping was not located in the target class net.minecraft.client.KeyMapping. Using refmap mixins.connectormod.refmap.json

Please report this to the connectormod and link back here in case they need assistance.