Lo-Fi Games

So i have a small issue lol, every time i try and build a wall (like to get up the side of a mountain via the road tactic) my guy wont build it. Instead he walks north (always the same direction) until he reaches the edge of the map, and then he walks OFF the map so far that my game crashes. I let him walk about 8 minutes or so before my game went down.

Any thoughts?

got a picture?

maybe this should be in the bug reports? And it sounds like a path finding issue so you might need to attach your save file.