Machine not finishing carve! Help

Hello all out of the blue my machine started to act up. It will stop and start when in the middle of a carve then completely stop and act like it finished the carve when it’s only 1/3 done.

What RPM do you run your Dewalt at?
Checked its brushes lately?

Search results for “Xcarve stop”:
https://discuss.inventables.com/search?expanded=true&q=Xcarve%20stop