DESYNC in co op campaign right at deployment

Veganskinner

I’ve read through the forums and tried saving files and sharing stuff and battle sizes and settings. Myself and my friend both keep getting desync messages during the 299 second message
Sometimes it’s even right as we are able to actually deploy our troops
It happens all the time. And on turn 0 onward. Someone. CA or otherwise. Tell me WTF IS THE SOLUTION.

We both have solid up to date systems. Don’t know what the issue could be. We are playing as jutes and western rome if that helps at all