I searched but couldn't find an answer to the question: "is it possible to save and exit while running a scenario and not lose all the assignments completed to that point."

I just ran a scenario - finished the first part - picking up a cut of containers in a yard - began running the consist toward the yard they were to be taken - I then saved and exited the scenario - when I returned my train was running where I last left it, but all other info was gone - I had completed nothing according to the assignment list - as far as the program was concerned I hadn't picked up any cars and still should have been heading toward the yard to pick them up.

Is this an inherent weakness of Railworks? Is there a fix? Those who are familiar with MSTS know you can exit and return to an activity with nothing lost. Any info/help would be appreciated. Barry