For a while now, I've had problems with black mountains and black ground texture in the distance on most routes. I have no idea how to fix it or what the problem is. Whenever there is a route with a lot of mountains, it gets even worse. I tried to toggle field of view, ambient occlusion, depth of field etc. and change settings to see if it improves anything but it doesn't. Could it be an anti-aliasing or texture filtering issue? Here are two pictures so you can see for yourself. Any help would be greatly appreciated!!