Yes, huge gaping holes! Specifically at UNTT Tomsk...I have a couple different add-ons for this airport, each displays the same freakshow problem (different AFCADs too, for each scenery...problem apparently  isn't in the afcads)..and, the afcads do not display any data, any facilites, scenery, nothing, when opened in AFCAD! Yet, my AI flights work fine, the planes come and go, taxi and park, etc. So there must be some AFCAD file in operation...and the parking, taxiways all line up with the scenery.

So, how can get rid of these huge holes (which the user aircraft will fall into, they are right in line with the runway)...and any ideas about the phantom AFCADS?

This really has me stumped. I tried flatten switches, to no avail.

I had just the opposite today. I was on my way to Kalispel, MT and saw this massive footstool come out of the ground at Mower Field, which is very close to the big airport at Kalispel. Turns out it was the field itself, atop a plateau that had to be hundreds of feet high. It was like some gigantic hand simply pulled the entire property of the airfield up into space and the ground stretched to follow. It looked like an enormous, gray, rocky Hostess Twinkie with an airstrip on it. I have never seen anything like it. I took a screenshot.

A few weeks ago, it was just the opposite. Part of a lake and some of the land surrounding plunged into the Earth for several hundred feet. I think I was over Texas or someplace out West...

I think it's gremlins...