On Crossroads, on the South-Eastern side of the map, just a bit north of the fuel point, there's a clump of terrain/fence that can trap units inside. Once units get in they can never get out even if they press retreat.
I accidentally closed the game without saving the replay because I was extremely angry, but I hope someone can look into the pathing on this map? It's atrocious that units get stuck and are just locked out the whole game....Ruined my game
There's a few maps with this glitch. Rather than press retreat, re-click on the (hop back over) fence area with the action emotion and then retreat.