Firstly apologies for commenting on a scenario made 2 years ago :) - Red5 below mentioned to me about the below - mentioning about a red signal, I looked into it (in case it was a route issue) and it seems that -

It looks like one of the AI - named SE 2D06/2D09 - is looking for "Portal Swale" (London to Faversham doesn't have this portal either) but this doesn't seem to exist on the route. I downloaded a clean version of the route off Workshop (so exactly the same as everyone else) and a clean copy of the scenario too just to be sure, and this is still the same. This train blocks other AI which in turn blocks the player.

Any ideas why i have a red light at beginning off scenario that it won't let me pass ?