There is a disconnect in the name of the map for the Rotting Fortress. I just started empowered monos and am on Fall of the Outcasts. As you can see in the two pics, the name is properly Rotting Fortress but when I press Tab to look at the map it displays Temple of Eterra.
#1
#2
EDIT: This happens in the Sunless Coast as well, it also shows Temple of Eterra.