Changing Fonts for different Languages (Localization

I am localizing my game, and I wish to use different fonts for different cultures. I don’t know why I cannot do that, and why there isn’t a clear answer about that on the internet. I did change the fonts on the translation editor like this…

But when I save and close it nothing changes, it resets and the game shows no change in fonts

Please help me, I really wish to use different fonts for different localization cultures.