@MHendricks Hi Matt, I imagine you have already done this but check the board front and back for debris, maybe take a picture or two of the board around driver 1 and post them, I'd slave another motor cable in and try for a repeat fault, it's also worth seating the driver plug and checking the crimps are fully engaged, I've had issues where the cable is fine but when pushing the plug in, one of the crimps pushes out slightly causing a fault.
It may also help if you post the M122 report once it fails again, someone will hopefully spot an issue for you