This has happened to me several times. I now Ctrl-a Ctrl-c before closing if it is a note update. New notes dont typically do this. I cannot go back and modify the note (via chrome or firefox..lastest updated browsers), so I start a new note, paste the changes and go back to either the new beta version and reconcile or desktop version. Now the beta version will not work even though my browsers are the latest version, so I have to make new notes. Frustrating. I'm on basic too, so maybe paid members dont have this issue. Brilliant marketing right?