HI,
I have recently bought an downloadable version of xplane 11from your official site.few days ago, I tried to change the scenery for airport OIII(Mehrabad Int, Airport,Tehran) to photoscenery by ortho4 program. Unfortunately, I dont know what a mistake I made, after that ,this airport dont load correctly and there are afew gray patches on runway.for fixing the problem ,I remove and reinstall the region by xplane installer that this airport located there, but it did not work,and the scenery issue is still exist.As, i dont want to remove whole xplane 11 and re install it.please, let me know if there is a way for chnge the scenery to original one . I appeciate your help and support.