A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Amy-Anne,
Are you using personal Microsoft account in your case? What about the people are you sharing with, are they using personal account, or work/school/organizational accouns?
Are you using the in-app sharing feature? When you use the "Share" button, have you tried copy link option instead, does it allow you? If you send the link to the same people, does that work?
Also, if you go to Files tab, can you tell the actual/exact path it is saved to?