Need help with fonts

[ObstRiegel]

Hello everyone,

I am translating the game in german and got this problem: the german letters "Ö","Ä","Ü", are not shown corectly in the game. I have seen that the game is using the Nunito_sans.fonts but this font can visualize the letter properly on my pc but not in the game. any tips?

for example Works fine: https://prnt.sc/jx4fwn
Doesn´t work: https://prnt.sc/jx4fzq