Recalbox is great, I use it for my Bar Top arcade with no problems (pi3), but I am having problems with my gameboy mod with the gpio setting for pi (Zero). I enabled the gpio pins in the setings but can't get the directional pad to register properly, any suggestions would be appreciated.

I enabled the gpio pins for recalbox but can't get 'up down left right' to register for my dmg1 for the pi zero. All other keys work. Please help if you know how to fix.