Thank you. I'm at Mesh 5 (where we keep things for ORBX). I'll find it, got to be "lurking" in there somewhere. But thank you for the idea.
I just tested it and, with the default (after install) mesh settings of 19 meters, I see exactly what you see in your screenshot, and after setting it to 10 or 5, it goes ok.
Of course, I don't have any 3rd party mesh or other vector product so, it's very likely that, if *those* meshes have a problem, they might cause this and, the way the sim works, it will always display the highest resolution mesh, even if it's worse than the one that comes with the airport.
We might be able to fix this, by providing with a mesh upsampled with an higher nominal resolution than every other 3rd party mesh out there, but it's not a very safe solution, because the sim start to display visual artifacts (spikes) when the meshes are too high resolution and, of course, the problem would reappear if another developer released an even higher resolution mesh, causing basically a "mesh war" between products.