I'm having an issue with my amtrac n scale Surfline. It will make about 2 trips around the track (7+3) then start beeping and slowly come to a stop and the red light start flashing on the top of the cab. All the lights and sound are still on so it's not like its losing power. I hit the forward button, and it starts back up until again about 2 times around and it goes into the same mode almost like its stopping at a passenger platform. Kind of cool but annoying if I just want it to run continuously it won't. Any specific setting to stop it from doing that??