Hi since the SU10 BETA and SU10 release when setting the runway material to be transparent using the transparency tick box on the runway options. Some people are having the airfield show as a water port, I did myself after installing SU10 before updating it was showing as a land airport just fine. I only had anyone mention this when SU10 beta's were out fine before that.
I thought I had fixed it after removing the transparency on the runway material saving the build then re-applying runway material transparency and saving and building the project again. It showed as a land airport after that for me, so i released a new build thinking it was fixed but others are still having the airfield show as water airfield even though it's working fine for me.
Do this to use the realistic looking default runway texture already there by default.
Just to add with this glitch airport doesn't show on world map unless you type in EGHN in world map search bar. The airport is usable when flying in from elsewhere in sim, so is loading in fine.
So right now, it seems you can't use the transparency option when setting runway material as turns airport into a water port for others.
Link to my freeware airport if want to try it to see.
Can provide the project file if needed by dev's.
Sandown Airport-EGHN-Isle Of Wight » Microsoft Flight Simulator