Re: Cant bind or unbind mouse keys or movements
There's a temporary workaround fix for this here: https://answers.ea.com/t5/Technical-Issues/Workaround-for-mouse-bug/m-p/11046869#M13455
Also, you can press "Restore Default" on the bottom. That'll only restore the defaults for the key bindings page that you're on, and not the other keybinding menus. That'll reset and correct the mouse keys.