This isn't to do with saves. I have the same issue on this exact mission. At a certain point I notice this every single time in my game. I only have 3 save files.
I have found it has occurred on missions where I capture and produce GDI units/buildings as NOD faction. I think this has something to do with it. Pure guess.
Who can investigate this or help? I'd happily try to isolate the cause. Long mission and I do really enjoy the game.
Sometimes my game has crashed if using offline mode and trying to save... but that's another story.
I also have the same issue on this mission and I have less than 5 save files.
The bug is quite annoying, but what is even more annoying to me is the fact that this issue hasn't been addressed in 2 years 😢
