Every time I'm writing here, i'm in trouble...
So, this time, I add a new level on my existing campaign (after loading a saved file with players in it). This new map is Arx from the story mode and seems pretty heavy since it slowed down all loading time. Not pleasant but expected.
I exit the game. I come back later and try to load this save to keep adding stuff, for the next session with my players...game loads until 80% and hangs there... forever.
Since I didn't have any other save file, I cant get back into my campaign...