Removing OVR Main Menu disables mouse control.

Hi. I'm working on a college project right now and I've used the standard OVR character controller as a base for my player prefab. I thought that removing the OVR menus would be as easy as unticking the component in the inspector, but when I do this it removes mouse control too. The weird thing is that if I click to disable the script while the game is playing I dont get this problem. Xbox control still works.

Has anyone else encountered this problem before? Any help would be greatly appreciated.