Could you please provide me more details about the issue you facing?
Whats the error you getting when you trying to send the pdf?
Also please send a screenshot of the error you getting and also provide me the OS details .
Also share the workflow .
I do not get any error message...
I am using the button "send file with email",... then nothing happens.
Only all buttons of the program are blocked for some time.
After that time (approx. 1 minute) I can use all the buttons again.
With best regards