Hi Chstk,
Thanks for reaching out, as described above, you are getting issues with reading /viewing the PDF file, correct?
It seems to be an issue with fonts embedding, please try the following troubleshooting steps and check if that works for you
- Open the PDF file that is creating the problem, Go to Tools > Print Production > Preflight > Type Fonts in the search box >Select , List potential font problems >Click on, Analyse and fix. and check

- Also, please try the following preference settings. Go to Edit > Preference > Page Display > Select, Use local fonts > Click OK and restart the application and check.

Let us know if that works for you
Regards,
Amal