Recurring bugs that has happened to me and many others that both revolve around saved games. The first is caused, like described, when you save a game. instead of saving it creates a .save.save file and crashed halfway through creating said file resulting in a save issue for the entire campaign path that requires the total deletion of all saves to fix. The second is caused 'presumably and reportedly' from overwriting a save game causing an instant crash at the end of the 'enemy' turn when you've clicked the end of yours. A mod to fix either/or these bugs will be followed my many thanks from all of us out there who have had to wipe many hours of game play to continue.