Posts: 6,554
Threads: 360
Joined: Aug 2007
Staff roles: Story Dev Economy Dev
The man above is correct. To make that base stick on your map you need to buy the bribe. That base is incredibly useful for when someone needs to lay low for a while though.
Other examples of unplottable bases are Bruchsal Base in Frankfurt. Personally I think that the data-bribes should only be sold on the hidden stations themselves, because then you'd have to find them to map them.
If a character already had the bases mapped before the mod change however, they'll stay.
A problem may be your graphics, is it all the way up? Because when it's turned down certain textures and elements of objects can become blank at least. The Hessian ships are an example of this.