I am sometimes playing custom workshop maps with a friend. After playing a while we save the game.
Some days later we would like to load the map and want to proceed the game. But I have issues to start in the map. I am in the loading screen and the progress bar does not get full. I am stuck at around 75% and nothing happens. The game stops there and nothing move forward. Additionally, the minimap in the starting screen (where I have to set the green mark to start) is grayed out.
Has anyone experienced similar problems?
I need help please.
Thanks.

I tried to delete the map from the folder and reload them in the loading screen. That does not help.