Wow. I don't get it, I read your comment and decided to just clean my Action Library (because in it I had number 1 to 0 to assign to the Scimitar mice) and clearing the Action Gallery fixed it, at least for now.
I'm confused as to why it was creating this behavior since, to my understanding, the library is just a place to store Actions, but well, it fixed it.
So big thanks to you.