Similar issue for me, v1.0.3 Terminal 5A (main building) doesn't load in.
UPDATE - fixed this for myself by deleting the install, then deleting the SceneryIndex folder, then reinstalling.
The SceneryIndex folder is here:
MS Store: C:\Users\[YourUsername]\AppData\Local\Packages\Microsoft.Limitless_8wekyb3d8bbwe\LocalCache\SceneryIndexes
Steam: C:\Users\[YourUsername]\AppData\Roaming\Microsoft Flight Simulator 2024\SceneryIndexes