How do I write custom controls to a platform character

Hello, my name is Gorum. I feel this may be the correct place to post this. I currently am making a basic keyboard-sharing multiplayer platformer-shooter. I have 2 players, with the "platformer" behavior on them. I have set custom controls, however, I am unable to beat this EVIL bug. Currently, the only control that will work on the player that has custom controls set up, is "jump" it will not move left, nor right, However, the default controller does work.

I have tried:

Switching controls

moving my players up and down

switching the objects with the custom controls.

and I have turned it off and on again.

Thanks!