Keep getting a crash on the mission right when I’m on the verge of attacking Mal’Ganis’ base. What is going on?
If you loaded a game save prior to this occuring, try starting the mission from the beginning through the mission menu.
I also experienced crashes in this exact mission. I don’t know if they are random, but they also occur in missions of the next campaigns (especially in Maiev’s). This is a recurring issue since patch 1.33.
I sincerely hope that the developers manage to completely solve this problem, because the campaigns are a fundamental part of the game.
P.S. You should post this type of issue in the Support section, not the PTR’s one.