Xbox One Controller works with Windows 10, but not Xbox One.

While testing the game in Unity on Windows 10, I have been using a wired Xbox One controller. All is working well and all controller input is working on Windows 10. When I build the game using UWP and install it on my Xbox One, the controller suddenly doesn't work AT ALL. The controller is wired to the Xbox One and the "home" button still works, but all other input from the controller doesn't do anything. Am I doing something wrong??