Well that was weird...

[Antwerp]

So I load the NERW route, and start placing more trains for a scenario. After exiting the panel to create the course of the train, it takes off in the editor... Everything ran, the Trains, the Cars, the crossings, etc. All but the sounds worked.... When hitting the "Play" Button, The train starts from 0 mph where it was when running in the editor and stays there for the rest of time when returning to editor. After clearing the Game Cache, it seems to have fixed the problem. Though it was an odd experience.