Outlook for Mac 15.9 missing ribbon I have installed a fresh copy of Outlook for Mac v15.9 twice now and after a few days of use the ribbon disappears from all of the windows (main window, email window, etc). When I select View > Ribbon in hopes that it will turn it back on, nothing happens.

How can I get this crazy ribbon back so I am no longer using the menu to send and reply to emails?
I've had the same problem using the 2015 Outlook preview on a Mac.

Quitting (using the shift alt delete equivalent) and restarting the programme gets the ribbon back every time for me.