This is the third time in 3-4 weeks that this has happened. When I detached an attachment, the entire email disappeared. It is gone and a search for it comes up empty - even the trash and junk folders. It is just gone. Message body is set to Original HTML. There were no other attachments in the "attachment" drop down. Version 115.7.0 (64-bit). Again, this has now happened three times and there is no way to retrieve the emails.