I've recently switched over from FSX to P3D and decided to add Houston today. Unfortunately when I load the scenery all the buildings disappear. Alson, when i go to the add ons menu GSX disappears as well, but the addon manager menu is still there. When i go in, it say all fsdt products that i currently have installed (KLAX, GSX, KIAH) are active. It's pretty odd because it only happens at IAH, if i start anywhere else GSX remains in the menu, and works fine.
I have tried:
Running the Live Update (as admin)
Reinstalling (as admin)
Loading into IAH then switcing airports (GSX menu still gone)
to be clear, the scenery loads up at first, for about 5 seconds, then disappears. No warning or trial messages. No CTD. Here are some photos.