Not so much a bug but I managed to trap my commander between two factories. I had a line of vehicle factories queued up and my commander on a move command across the build line. He was beside a just completed factory when the next one was built and trapped him between the two unable to move. A little bit of space between the factories to allow units to pass between would be great thanks
I think the pathfinding just needs to be improved. My commander get's stuck now and then and even sometimes he fell in areas he can't walk out, where orbital units had to load him to get him out. >.< (deathstar maps) In Supreme Commander 2 i had much more packed bases and units never got stuck really (it had amazing pathfinding!)