i was in the train then left the computer for 5-10min and when i came back, the train had stopped and i couldn't get out. i had to call for help. then a helper entered and the train started to move again.
Did you file a bug report? And there is a bug forum here too. You posted this in the General forum. The devs will likely find it eventually, but they find things faster in the Bugs forum. Don't be embarrassed about reporting anything you think isn't looking or running right. If it detracts from your enjoyment of the game they really want to know.