+1

Found out how it works and also guess what the problem is.
First how to make it work:

Dont load your savegame from the nomal single player menu but instead load the mod like you would if you want to start a new game and then load it from there.

Probably reason:
The Fearun Arts assets mod isn't tagged as neccesary for the savegame and so he skips them when you try it from normal menu. That's probably also the reason why the savegame shows Sarevok being Washington.