AI BUG BUILDING PATHS AND BOATS
It has happened to me a few times, when playing against the AI sometimes the AIs build a boat and it continues with a road.
More curiosly, later it moved the boat (as if not connected to anything) so the road remained strayed (with no connections) in the middle of the sea. And, of course, the AI kept using it to create soldiers on both ends.
Another time the AI was building boats towards an island and it run off of boats but it continued building roads in the middle of the sea until it reached the island.
Not sure if it is a general thing about the AIs or a Cities and Knights issue (it is the games I play the most).
Also not sure if it affects all the AIs or it is an specific one, but the case of the road strayed was Marianne level Master
I have a screenshot if needed, contact my email if you want.