When I try to send a signed/encrypted message from Outlook 2016 without a subject line, this happens:
- Outlooks asks if I really want to send a mail without subject
- I click on "Send anyway"
- The new "Signing.../Encrypting..." overlay appears
- Another "Do you want to send this mail without subject" dialog appears *behind* the Signing/Encrypting overlay
- It looks as if Outlook/GPGOL has crashed, but you can actually use the arrow keys to navigate in the dialog and select "Send anyway" again
If you need a logfile, please drop me a line.