Since finishing the contract "Train Departure" (Co-op) unable to switch to any other map.
We played the mission (see above) and the game crashed exactly in the moment when it was finished.
I hosted the game and my friend got a disconnect. Needs no saying that the mission was not finished for him.
Sideeffect:
One barrel of fuel left on the truck although it was counting correct for me and like I said it finished it for me - I could watch the "scene".
Since then I cannot switch maps/ cannot leave "Grainwoods River" (SP/Coop)
I tried so far (unsuccessfully) to travel to different regions
- -> garage to garage
- -> from garage to car & vice versa