This does not ensure that it will work to you, But done to me.
*** CA note: we suggest that you make a copy of your saved parties before proceeding.
To do so, copy the entire “save_games” folder (C:\Users\Administrador\AppData\Roaming\The Creative Assembly\Rome2\save_games) in a safe location. Thank you ***
Aparently there is more than 1 way to fix the problem.I personally recomend to use this fix , only in the case that the first way (firt part of the post) does not work, because can low the maximun
performance of Rome 2.
What are we going to do: Just Disable Directx 11.
We look again for the folder Rome2.(I will use my pc as example.)