Spikes in elevation at certain airports

My name is Gerry and I could need some assistance with a unique problem with my system.I have a "spike elevation issue" for certain airportsi Alaska, Yukon and NWT.
I suspect that I downloaded a file or files that are causing this elevation problem. I do not know if the problem is related to: Mesh ? LOD's ? or what.
I looked in my Scenery library for specific files...I have deactivated some files but no positives results yet....
Thank you to anyone that could help me out with my situation.
Gerry
I suspect that I downloaded a file or files that are causing this elevation problem. I do not know if the problem is related to: Mesh ? LOD's ? or what.
I looked in my Scenery library for specific files...I have deactivated some files but no positives results yet....
Thank you to anyone that could help me out with my situation.

Gerry