This is a noob issue, but I’ve seen several new users confused. In CM, when a job is running, there is a green pause and a yellow stop button.
The stop button does nothing when running - It is difficult to tell as there are no other yellow buttons but it lacks some color saturation which is supposed to indicate it is not functional. This isn’t obvious without other yellow buttons on the screen.
If you hit pause, then you will see it become a more vivid yellow and to show it is now active.
It’s a bit of a safety issue if your trying to stop the machine quickly (pause) seeing the different color can lead you to try it first instead of pause.
I’d suggest either the stop button be hidden until paused or even make pause yellow and stop red and reprogram it so when stop is pressed it immediately stops the machine. Or at least also pauses the machine.