Actually what happened is that it glitched out of the map causing the Nan to appear because the engine had disappeared without being deleted By The Player
@@ItsGackSouthwest Server is the name of the train, it's Called Southwest Server because Every Railroad Ingame is Parodying The Real American Railroad Southwest server being a Parody of ATSF (Atchison, Topeka and Santa Fe) More Commonly known as Santa Fe.
@@RealATBWC they removed crashing on switches for some reason. that was the one thing i used to do. they also removed a lot of trains. now the game is just a shell of it's former self (in my opinion)