Dance pad button input stays false

I'm using a dance pad as a gamepad input, but for some reason when I print out the values of the button or axis input, they don't change when the button on the pad is released. I know the pad works because I have tested it on multiple online game pad testers, as well as a free dance game I downloaded online.

I'm essentially putting this in the update method:

 print(Input.GetKeyDown("joystick 2 button 13"));

and when I press the right pad, value changes from false to true, but then stays there (even if the button is released). The same thing happens with the axial imput (goes from .0032 to .1 and stays). Am I doing something fundamentally wrong?