This shouldn't happen when using a free/flying camera. When on an AI only train that's going out of bounds fair enough. However it is incredibly frustrating when you're using the camera to look around and suddenly you're put back on a menu.
Instead of that happening you should just hit a wall or something. Also I spawned at new Roccelle (spelling) on the NEC and got on a train to New YorK Penn But about a mile out of New Roccelle I got that screen.
Yes. I have been thrown out of GWE way to often near Paddington and that's just at the end of a service, this has to be removed.