I was just concerned that if I turned off the control box it might reset the problem. Will power down first and if it does then will just keep going till the problem arises again then make sure the motors are free to turn by hand before I do anything.

The noise Jazz, well it's the exact same noise that I got when my friend was setting the unit up and had the feed rate really high and it was missing steps. Maybe the camera doesn't make it come out right. I'll not rule out the sticking bearing though.