Dumb question here - If screws are coming up under the rubber roof posing a potential leak problem, is it a bad idea to cut a tiny slit just big enough for a nut driver or screw driver bit and drive the screw back to where it came from? Then seal the slit with Dicor or Eternabond or combination of both.
I mean, if the screw totally comes out you'll probably have a leak anyway, , but that also means that something is starting to come apart right?
I have a couple screws like this on our current TT, not a Keystone. Soon to be Premier owners though.