Final stage is absolute garbage for this reason.

The squads just keep running in that circle, they are stuck there. So all you can do is retreat and try again that way.

Edit: Nvm, they can actually move down on the arrow point at the right. It just took them 9 laps to do so... Thought they would approach of from below and move left or upwards. Looking at the map again I know thats not possible, but my god that was some stupid rng.