As most folks have presumed, it’s very likely the focus height - this might help that:
The other reason for that particular error is an issue with the file. Are you attempting an engrave from a provided design, or is it one of your own making? If the latter, you might try something as easy as copying it and saving it into a new file. If you’d like one of us to see if we’re having any issue with it, you can upload it here.
provided design, or is it one of your own making? If the latter, you might try something as easy as copying it and saving it into a new file. If you’d like one of us to see if we’re having any issue with it, you can upload it here.