I was to trying to do a carve this evening, after all the setup, confirming home, raising the bit, turning on the spindle, and hitting carve. The program just went back to the work space and didn’t carve. It just sat there with the spindle running.
Did you lose connection between the controller and your computer?
What happened when you went through the Carve sequence to try again? Did it work on your next try?
When you clicked simulate did you see the toolpaths?