After installation of the scenery EGUL V2 appeared a big square on the ground texture in the colour of red and black. I suppose nearby city of Corby.
I tried various times to install and uninstall but the issue is allways the same when EGUL is activated.
I have default FSX scenery for Great Britain. For example the very detailed scenery Coningsby FSX works well. No problems with AI traffic. I have MilvizF15,F4, JustflightTornado and no problems with framerate.
The scenery of Lakenheath is indeed amazing and a must have. So could anybody give some advice to stop the issue.
Kind regards

I believe the solution may be found here :- https://militaryaiworks.com/forums/18/1 ... em#p179155

Dear Firebird,
you have found the solution . The reason was a corrupted bgl file . All scenery shows up now without an issue. Thank you so much.

Glad to have helped but credited for the fix must go to Ian.