I have a mouse with 2 extra buttons on the side of it and I tried to set them to let me cycle my spells for quick and easy access. Needless to say I was a bit confused when I realized I couldn't cycle my spells at all. Eventually I tried rebinding it to another key and it worked.

So for now I'll probably rebind the wheel to like q or something, but it would be nice if this issue could be fixed.

The keybinds are build directly on top of forge and minecraft. Are you able to assign those keys to any keybind at all?

Normally they work just fine, or at least partially work in the case of 1.12 which is the only version I've had issues with my mouse buttons not working. However, I can't use any mouse buttons at all as keybinds for this mod, when the side buttons didn't work I tried the scroll wheel which also didn't work for me.

I technically was running a bunch of other mods at once, but I don't know if that would impact my ability to bind keys to my mouse since I always do that. However, it is possible that some of the other mods (a few of which were in alpha) could of caused issues.

This should now be fixed on the latest version