I unbinded the pause button from the controls menu, in order to replace the 'start' button on my Xbox 360 controller with Zoom In. The intention was that I'd use my keyboard's 'ESC' to disconnect/pause.
The problem is, ever since clicking 'Apply' to this change, I cannot make any other changes to my controls. Because the 'Apply' button is the same as the pause button - and because my pause button has been disabled - I cannot hit 'Apply' no matter how wildly I click my 'start' button.
Even if I go back into edit controls and select my start button - or any button - as my 'pause' button, it will not register this change. If I click my 'start' button after binding 'pause' to it in order to 'apply' my edits, nothing will happen. Which means no matter what I do, I am unable to edit my controls in any capacity. I cannot even revert back to default controls as the option to 'Apply' the change does not exist.
*Use controller* Game Options Controls Unbind 'Pause' 'Apply changes' = Cannot make any other changes for controller.