Is what I’m trying to do impossible? I think I already know the answer is yes but we’ll see. I set up a scenario for the player train to run Birmingham new street to Redditch on multiple round trips. That all worked fine. Timetable is all white, all good. As soon as I add AI trains into that mix at various stations it turns red saying it’s blocked, baring in mind it blatantly isn’t. Totally confused by this. Is there a workaround? I’ve made scenarios before whereby you’ve got a player train following an AI train on the same line so I don’t see what’s different here.