my witcher 3 is set to german, gog galaxy is set to german also, but the game is english (text and audio).

i even switched the language to english and back to german, but it did not help.

How can i change the language? Is there maybe a config file i can edit?

C:\Users\Username\Documents\The Witcher 3

User.settings
Change
RequestedSpeechLanguage=EN
SpeechLanguage=EN
RequestedTextLanguage=EN
TextLanguage=EN

To
RequestedSpeechLanguage=DE
SpeechLanguage=DE
RequestedTextLanguage=DE
TextLanguage=DE