I'm assuming the train is missing? Or is it not being able to complete the first task? It's very vague what is broken
There is nothing to fix here, the first task in this scenario is to couple two three-car Class 101s together and then start the journey. Since the shunting work has no fixed times, no times appear which is perfectly fine. Arrival and departure times are only available as soon as the regular journey begins. The scenario itself has always worked without any issues.