Together with some other pilots, I have experienced this weird freeze phenomenon, seemingly caused by static runway objects. We have used these objects to form "tunnels" in the valleys for several air racing courses. Whenever one flies close to several of these runways, the screen freezes, all HUD and all text disappears, only the plane icons are left besides the picture itself. Also, as seen in the picture, the cockpit textures also disappear. It happens when you are in cockpit view, or have atleast one other plane in sight in external views.
Here is a screenshot of what happens:
Screenshot by Tommy-
This must have something to do with the 4.11 patch, since we have used the same racing courses in previous versions without ANY problems like this. If there is a way to solve this, I thank you in advance.