Course Translation not working

Hi I am trying to translate a Rise course with the .XLIFF File. I did it the exact way how the Manual told me but when I replace the text parts in the downloaded file and upload it the given way and format, it tells me that the upload was successfull. But the text in the course did not change at all. Even with just replacing one word it does not seem to work. I tried to do it with AND without the HTML formating in the download section.

I hope to get some help soon :)