I have a friend just down the road from our house who has been using a Shapeoko for about a year. No issues until recently. Dialog boxes were showing up in Carbide Motion that had not been there before. I said I would stop by and take a look.
Based on numerous posts on this forum I checked the post processor selection and sure enough it was GRBL
We changed the PP setting to Shapeoko and ran the jobs presenting the unexpected dialog boxes and they were gone.
Bill