The Scenarios we just released for the NEC seem to have some issues after updating Trainsimulator 2012 to version 6.5 and higher.
There are the known issues of the NEC: decoupling etc, we have AI Trains that stop when approaching the player train, and since todoy, I can see red/Green switching Signals at Trenton Station, causing the player train to be stuck.
On the Port Road, for example, there are no such issues. Everything works fine.
Problem with old scenarios are not the sceanrioscript, as heavyChevy wrote, the problems are "Trainsimulator 2012" related,like the static consist clash-error, as I can see from here, it does not affect anything in the Scenario, or maybe the stopping AI trains?