A started a route from an oilfield to a power station, and bought an oil tanker. It went to the oilfield's goods station, loaded a full 5 tons, and then got stuck. "X cannot find a path" read the notifiaction, or something to that effect, and I could see the tanker stuck on the edge of the station, going in the wrong direction.
Half of the truck was still inside the station, the other half in the oilfield, while the entry/exit of the station was in the opposite direction. Any idea what was going wrong? How can I find out in what way I have misconfigured the road/the station/the lorry/the trade route?