At the start the instruction is go by crossover and the route is checkpointed. But theres a pair of locos blocking the route and they don't move
I saw this problem on a youtube video just the other day, so you certainly aren’t the only one running into this. The person that hosted the video ran into this issue several times, and ultimately just spawned into the area around the same timeframe and the locos blocking the crossover were nowhere to be seen.
Cheers, I will keep restarting, there was also a time when I had to go to a checkpoint then reverse back onto a train, but a loco parked behind me. I had to take a long route to get around it