Noticed an issue this morning with the Coswig to Dresden S1 service in Chapter 3 of the journey. It loads on foot and not at Coswig Station with an instruction to open the doors but there is no train there. Tried reloading and I spawned at a different station. Identified the same service in service mode but the same issue. Just realised I can try the keyboard shortcut to jump back in the cab and see if that works, will update later.
Update: Checked and confirmed Ctrl 0 doesn't put you back in the cab. Seems you're not assignedto the train and randomly spawn on foot, though there is a marker on the map for where you should be closing the doors!