No MFI controller detected?

Hi, I am using Unity for a class and trying to make an MFI controller work with my phone. I set it up in the inputs menu, but it seems that the app I make does not detect the controller, even though other games do just fine (Even one unity game I got from the app store).

Is there an extra step I should do, beyond mapping the buttons in the input menu? A separate mapping works just fine for windows/android with a controller.

Thanks