Could you report this to support@masso.com.au this way we have a ticket that we can interact with you for testing, etc.I’m on screen F2. I have set the spindle speed manually to 1200 rpm and press spindle counterclockwise and the spindle is running at the correct speed according to my motor controller. I now switch to screen F3, and as soon as I move in the X direction, using the pendant or the controls on the screen, the motor speeds up to 1500 rpm. This is repeatable.