Acrobat Standard 2020 font issue

[JUKKA245152088b0j]

I have been using different versions of Acrobat for editing PDF:s for years and most recently Standard 2020 for about a year now. So far there have been no issues in the 2020. Now I translated 35 pages of a document and everything was fine when I saved it, the next mornig I went to open it and it was like this. What happened? I thought it might be some kind of font issue but I'm not sure?

What a joy to redo 2 days of work!