In my Rothera scenery I created a large 3D terrain with the intention to make the 3D cliffs along the glacier edges the way they are in real world (which was the only way to do it without SDK access to photogrammetry technique).
Sadly the default aerial/satellite imagery in Antarctica tends to be too dark so I needed to create a smooth transition from the darker default scenery towards the brighter 3D model of the glacier.
A "simple aerial" didn't work out in this case as apparently MSFS only allows one such aerial per addon scenery. Furthermore - being locked to LOD20 for aerial imagery - it's not possible to cover a large area with it.
So my approach was to create 3 placeholder airports around the landside perimeter of the 3D glacier that each contain a large decal model of about 50x60 kilometers. Each showed to about 20km out from each airport center, which was the reason I created 3 of them.
Sadly these large decals do not display anymore since the the most recent MSFS update.
After MSFS update:
(Ignore the differences in daylight please, but the point should become clear)
Is this something that can be fixed in the next MSFS update?
It's quite frustrating that there no way for us to create aerial imagery on a larger area (or having access to how photogrammetry works).