Sometimes connected maps are not enabled

This happened to me multiple times in 0.1, sad to see this issue is still here in 0.2f:



you can clearly see a connection from the tower to the map up north, yet it is not highlighted and I have to go around and the second shortes path to the nexus is twice as many maps...

edit: I didn't notice it right away but the map on right of the screen was enabled (but not connected) i was able to run that map and then connection for the tower switched to taht map on the right