GBRL Mega 5x with Rambo support Lost X2 and Y2

Im running GBRL Mega 5x with Rambo support. Everything was working except my laser. In trying to change the PWM pin , i have lost my X2 and Y2 stepper movement. I tried reflashing with original firmware. Still no stepper movement. I swapped cables in the control box. Both stepper move but the original two stop. where do i go next?

OK don’t ask me why, but i reflashed the rambo with Marlin. Verified everything was working. Pass. i then reflashed Grbl mega 5X. Somehow everything except the laser is working now. Well back to trying to kill it again. Has anyone successfully installed a Aenbuslm laser module on their Rambo 1.4A?