@ilpappa unfortunately I'm not the one to give advice about electronics - I don't have enough knowledge/experience.

@mitu I tried the testing through gpionext testing 1 & 2 for each gamepad, all the buttons were picked up properly. I am still getting the same issue however. When I go to set up my gamepad, despite the fact it says 2 game pads detected, when I hold down a button to being set up, it comes up as keyboard.