xpro V3 Ox built CNC: A-Axis won’t work. Hello, i have a question regarding my CNC xpro V3 I am using with my OX-like built CNC router. It was running fine, until I have tried to change the stepper settings to a finer setting by moving the jumpers and Pot adjustment, because the Z-axis acted a bit sluggish. After the adjustment the A-axis, which is the designated slave axis to the Y-axis does not move at all anymore. The things I have tried: Changing GRBL settings, uploaded my initial GRBL settings again, Used different G-code senders, tried switching the stepper motors to check if it’s a motor problem. None of the above worked. Now I have measured the resistance between to connector pins at the board at the a-axis driver. There is no resistance between the A1, A2, B2, B1 connectors when the power is off, means , it seems like they have connection throughout. I guess the board is malfunctioning ? Any help appreciated. Thanks!