So yeah there was at some point plans for an advanced starport me thinks, as A. the counter esp. center uses a graphic that is referred to as such.

I've been trying to mod a advanced starport into the game, basically a starport with a good chunk of industry or perhaps a ship speed bonus built in.

I simply copies the entry for the starport, and then modified a few things including the internal name, pointed it to upgrade from the starport.

Now when it upgrades the planet doesn't register a starport but you cant build a replacement, and funnily enough you cant replace it even after decommissioning!

So I'm a bit curious if anyone knows what I'm doing wrong?