I am having the same problem, can get around the circle but when it wants to go to its final destination the train derails. It appears it wants to go inside a building
You can finish the service by changing some switches and go around the building. Uncouple from your passenger cars and reverse the loco into the building. That way you can get to the stop marker and finish the service. It's broken, but if you really want to, you can finish it this way. But hopefully it gets fixed at some point.
Bump... Do DTG ever fix anything? This is still broken. If you follow the proscribed route you derail after colliding with the depot door. I tried the alternative solution and an AI MBTA empty stock rammed me also ending the run. Can this please get some attention or remove it from Journey Mode, please.
On a third playthrough I managed to get the workaround to work, but you still have to reverse the train through a closed shutter door which is ridiculous. Even OMSI 2, on the London map when you leave the garage the door rises up to let your bus out. So once again DTG, please revisit this scenario and change the parameters so that either: 1. You can roll straight into the shed as intended without the collision detection derailing the train. 2. Change the guide path to take the train via the head shunt at the back of the depot and reverse in. 3. Have the train simply stable on an open road. In the case of 1 or 2 have the shed doors open on approach or change the static model so the doors are also open. It should also be noted once inside the shed there is no interior modelling not even textured walls so you just see the outside world. Very amateurish effort!