Try what happens when you set the ‘Controller Override’ option to ‘On’, which means gamepad input will get translated to mouse input. Some (a lot actually) games can’t handle mouse and gamepad input at the same time correctly, so when you use vorpX’s standard mouse emulation headtracking in those games, you have to translate gamepad input to mouse/kb input (or actually use mouse and keyboard).
Only way to tell whether a game is affected by the issue is checking whether input related glitches disappear with the controller override option set to on.