Thanks @gazumped, to be more precise, let me explain how to reproduce this perceived bug:  * create a new note, call this N1, the public link, call this L1, works as expected * duplicate N1, call the new note N2, the public of N2, call this L2, does not work and give message "The URL provided does not correspond to a valid shared note. This may be caused by a typo in the link, or the note owner may have made it private. Can anyone help?