As the title says, CTDs when: When pressing "Save game" or "Load game" on the pause menu during a game, and also when pressing "Load Campaign" in the main menu. I don't mean when attempting to load a specific save game, simply pressing the "Load campaign" button causes a CTD.
However, I can begin new campaigns and I'm able to autosave and quick save without CTDs and load them through the "Continue Campaign" button in the main menu.

I've deselected all mods from the launcher and done a reinstall, but I'm still having this problem.

Any help would be appreciated.