I turned on the Outlook beta 2 weeks ago, but a few days ago, it won't let me delete any email in my edge browser. Other functions like sending, forwarding, and reply work. It also won't let me toggle back to normal outlook.
Likewise - I click the trash can icon next to a mail and it disappears from view, but on reloading the web app it reappears. Currently all deleting has to be done via the Android app.
