There is a scenario where you are colliding with another AI train at this point in it. It cannot be complete in any way because you are on a collision path with the AI steamer because the path does not change when you are instructed to go back to the stopping point you keep going straight into it's path.
The service works perfectly, you just have to be faster. The AI gets ready to shunt at 8:10 and passes the bridge shortly after 8:11. You can't see your path because you are offpath, the first picture shows the incorrectly set switch. And last but not least you did not turn the loco on the turntable. P.S.: Winzarten is right, you have to set quite a lot of switches.
