I thought it might be related to spotting too, I just got wiped so I was missing my dedicated scout, but once I found her it was still there and the range hadn't changed. So far it is only affecting PoP for me, I checked my Native game and I can travel anywhere with a click. It also doesn't seem to be affecting Gekokujo as I can move fine their as well. It is just messing up my PoP saves. I tried starting a new game but the bug is still there too. I've deleted and reinstalled the mod, as well as the native game and it hasn't fixed the problem.
For me it seems that it isn't the top of the screen that is the problem, but a max range around the character. I have to click within that range or else the move won't register which is frustrating when you are trying to maneuver around one the many super mobs the game creates. The game is still playable, I just have to click every move in segments now....