Hello! Yes, worse than that, it really is a bug... The other day, I was driving this train, and I ended up leaving the accelerators in position 5, and it was accelerating, accelerating, until it was at around 303km/h. It's something very strange.
Can you tell whih type of train did you have? If it was any high speed train its normaly behavior. You must look to properties of train in loco computer.
