There's a permanent red light at Canton Junction rendering it impossible to ever join the main line. Loaded passengers and waited until the departure time, light still red ten minutes later with all requests denied. No other services anywhere nearby. Should be easy to replicate as it happens literally two stops into the service.
Did you try contacting the signaller. I did and it said to proceed at restricted speed. I was another one where it didn't let me and I was 8 minutes behind schedule at the next stop, but I arrived into boston only 30s late and got a gold in the end.
I learned that its a 15 min wait as the express half a map away approaches and fly's by then you have to wait more then follow it with all reds as it makes every stop infront of you by the time i finished was roughly 35 mins late
As I said in the initial post, all my requests to the signaller were denied. I've restarted the scenario from the main menu three times so far and every time I get stuck forever at this light.