so I had 2 gates at this airport, and I built 5 more. Since I had a bit of a gate surplus, after the build, I returned the gates I had rented. Now however, I want to make that airport a base but it isn't listed under the "make base" option. And if I want to extend the terminal, it tells me that the terminal cannot be extended because that airport is no longer my base....
Any help would be appreciated.
ID 3524
Airport in question is TIA