XC Pro Homing Issue

Had a weird thing happen yesterday. Fired up the XCP and when I went to home the machine, the right Y axis did not move. The left side moved fine and caused the gantry to rack. I could manually jog the machine and both Y motors drove fine during that, but hitting the Home button would result in only the left Y motor running.
I manually jogged the machine all the way forward until the gantry hit both limit switches and then the problem was resolved.
Any ideas?