Hi,
The issue with appearance value of form fields with non-Latin characters is a known problem. The fix is in the works, however, it is not an easy one, I plan to deploy it in June.
The issue with radio/checkboxes export values is a new one. I tested this case and it appears that it is indeed not working. I’ll see what can be done to resolve this bug.
Thank you for reporting your issues.
I’ve deployed a fix for the radio/checkbox not being selected bug.
You would need to recreate the CF7 form tags due to the issue being tags with incorrectly generated radio/checkbox values.
Let me know if my fix works for you.
Unfortunately, the appearance value issue is still unresolved at the moment.
I had to roll back that fix for the radio/checkbox not being selected bug due to another bug that existed in the fixed version. A fix for both bugs is now deployed to the beta API URL at https://beta.pdf.ninja/. You can test it out by changing your API URL in CF7 Integration settings.