iOS Help with controller ( Gamepad ) layout

I’m not sure if it’s the fact that I’m using a razor Kishi now as opposed to my Xbox controller, but the layout doesn’t seem to be detecting I have a controller plugged in . That being said , it DOES let me use it, it just seems to be missing some features. For one , it won’t let me run with the b button any more. Is there a certain layout from the drop-down menue I need to select?
 
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