Save PDF button never worked properly so it has been removed from the program until it’s re-implemented differently.
For the time being, you can use
Exporting invoices to PDF
Wait a second, how did you manage to show the save PDF file dialog in the first screenshot? What button did you click in Manager?
Same button, except that on this it did not go beyond showing the options (PDF, Printer, onenote etc)
If you click
It is the same button I pressed when I fisrt created the documents but did not manage to save successfully. On subsequent attempts, I’ve had to restart the application but with no success except for the email option. Worry comes when no internet and there is need for printing even on a printer.