I have both ORBX scenery, and mega scenery earth 2.0. When I use one, the other is disabled. Recently, however, when I disable the ORBX scenery, and activate mega scenery Oregon and California for example, many airports have sunken runways. All elevations were fine with mega scenery California, but after installing ORBX Northern Cal, the sunken runways appear in mega scenery California even though the ORBX scenery is disabled. Does anyone have any thoughts on why this might be occuring? Thanks