I am attaching pic of KDEN after disabling GSX for that gate. So the ground markings are not in FB KDEN.
Have you read my previous post ? I'll copy it again the relevant part:
Also, keep in mind the
default jetway replacement model have ground markings that cannot be disabled, since it's supposed to replace the default jetway that always has ground markings included in the jetway model. But of course, in this case, the editor will know, and the ability to turn on/off the markings is disabled on that specific jetway model.
So, if you "just" replace GSX jetways and don't select a DIFFERENT jetway type, you'll see ground markings from GSX that cannot be disabled, and rightly so, since the "replacement" jetway model, which is only one of the 80+ available, has been made like this to mimic the default model as close as possible, and the default model also have embedded ground markings, so they are compatible.