I have a couple Carenado aircraft (C90X and the EMB-505 w/ Navigraph add-on) that both do not work with Navigraph data. When attempting to put a route into the G1000 or FMS (depending on the aircraft), no airports or waypoints show up and I am unable to enter anything (i.e. there's something wrong with the nav database). Also, the "Building Navigraph Database" window stays at 0%. I already contacted Carenado and they were unable to figure out the problem. I uninstalled FSX Steam completely (uninstalled, deleted all folders including AppData ones, cleaned registry) and reinstalled it, adding the EMB-505 as the first and only aircraft up to this point. Without installing the Navigraph extension, the default nav database works fine. However, as soon as I installed the Navigraph extension, it was back to where it was before: not even able to input an airport into the G1000.
When I was installing both the Phenom 300 originally and the Navigraph extension later, an error concerning dll.xml (screenshot is attached) popped up. I was able to click OK and bypass it. However, when I checked for dll.xml, it was nowhere to be found in any of my AppData folders. I would assume that this is part of (or the whole) issue. It is interesting that the installation seems to be trying to find dll.xml in my FSX AppData folder rather than my FSX-SE AppData folder because I don't have FSX installed (and hence no "FSX" AppData folder). However, there is no dll.xml in the FSX-SE AppData folder either way. Any ideas?