Hi there, since a recent Nighthawk controller software upgrade, my Y and A lights are flashing on the commander screen. The CNC still works, does jobs, although I can't home the machine with Y light flashing. I can still zero the job though, and run a job. Anyone else has this issue ?

Total newbie here, when both Y motors are connected and the machine tries to home, the Y motor 2 doesn’t actually allow movement and the machine is clunking back and forth going nowhere ? If I disconnect Y motor 2 then it runs perfectly on Y motor 1 and homes. If I disconnect Y motor 1, then it tries to home in the opposite direction away from the Y limit switch … almost like the Y motors are working in opposite directions when they are both connected. Any help appreciated !