In the Formicarium mode, the icon for the surface exit isnt showing.
The mission mode works fine as far as i was able to tell.
Ive verified the game files and reinstalled, if someone would tell the path for the error file ill gladly post it.
Thanks
The icon was removed in the last update (there's still an icon in the minimap) - instead, you just click the area and it marked for excavation like any other tile.