Hi, I am doing my first build of a core x/y hypercube with a Bigtreetech SKR 1.3 board. I am just bringing my z motors alive and I am testing one at a time to make sure I have them connected correctly. One of the motors works just fine but the other when tested alone chatters and the motor doesn't seem to turn the leed screw. Don't have a clue as to the issue. Thanks for any help.