It is Vinylmaster Cut, but the image on the right is Gimp. I have determined that the issue is that Vinylmaster Cut does not default to black when no fill color is specified in the XML. The specifications list black as the default if no color is specified. https://www.w3.org/TR/SVG/painting.html#FillProperties The fix is to open up in a text editor and find the fills and change them to black.
Eric