I have a train track loop on a map with two trains on it. Orders for both trains are identical, and they move clockwise around the loop:
station A -> waypoint A -> station B -> waypoint B -> ...
However one of the two trains is always parked at the depot. When the currently active train enters the depot for maintenance the other takes off.
What changes do I need to make such that I can have more than one train operating on the loop simultaneously?