Yes. I posted a thread about it in the Troubleshooting forum. In my case it was just the last saved game, no overall progress lost. So bothersome and troublesome, yes, but all we can do is move forward and hope they don’t mess up like that again. And Myron , not all of us have the time to run a timetable or scenario in one go so the save game is essential, flawed as it might be. Though these days, generally far more reliable than it used to be. In fact we need more save game slots, one for each route preferably.
Thank you OldVern, yes it's a bit frustrating, I like to spawn stock throughout the map and then move it about and this can take some time as you can imagine so I'll just have to start again. And yes I agree it would be very useful if we had multiple save slots.