I have a 360 mad catz retro joystick pcb hooked up to my joystick setup. I have checked the L and R trigger pins and they are clean. I have even replaced the wires and reduced the amount of solder on them.
The board will activate the L and R trigger constantly. It will do it occasionally in the 360 menu. It does not matter if the board is moved or not. The little black clips that go on the L and R trigger spots have been removed (the ones that have to be in the “neutral” position.