Minecraft v1.18.1
Forge v39.0.59
Framed Blocks v4.1.0
Rubidium v0.4.0c

I was testing if I could switch from Optifine to a sodium forge mod, Rubidium, but it crashes at launch with mixins.
Crash Report

This should be fixed by 196c95f, which will be included in the next version of FramedBlocks. I'll leave this open until the new release is out.

Nice, thanks :)

This should be fixed

Honestly, this is not a solution to the crash. Rubidium ports new Sodium branch and after class name
refactoring me.jellysquid.mods.sodium.common.config.Option became me.jellysquid.mods.sodium.config.mixin.MixinOption

Thanks for the heads up, I am going to take another look to make sure the class names are correct.

I've added the necessary check for Rubidium, thanks again for notifying me.
New version will come out tomorrow. While it works in dev, I would appreciate your feedback whether it works properly in the wild.

Quick heads up: The new version was released yesterday.

It's working for me :)

Perfect, thanks for the feedback