Hello,
With the release of P3D v4 I have installed all FSDT scenery that I own but I have noticed that on some sceneries I have a bad ground texture morphing (I don't know how to call it, I know it should be related to a corrupted terrain.cfg) problem.
In particular I tried CYVR, LSZH, KMEM, KLAX and KIAH (I still have to try KJFK v2, KORD, LSGG and KDFW) and in LSZH and KMEM ground texture near the airport keeps changing and moving all around.
In particular at KMEM ground texture around the airport are switched with the one under the airport so I see the grey texture of the taxiway (that usually is below the real taxiway, I hope is clear).
Untill now I tried to reinstall all the scenereis (just to be sure I redownloaded all the installers) and pointing the installer inside P3D v4 main folder (no changes).
Unistalling the sceneries solve the issue.
No other sim installed, Win10 has been reinstalled two days ago and P3D v4 is clean.
Hope someone can help,
Thank you
Francesco