I am trying to open my 2017 vector works file on my friend's computer, a file that I sent to her. We both have the same 2017 student licence as part of the same school. When she sends me her file, I can open it. When I rework the file and save and send it to her, she can't open mine. The message: 'this file was saved in a student version of vectorworks and can't be opened on a professional version' keeps popping up. It confuses me because we BOTH have a student version of vector works. Can anyone help please? Is student file sharing not allowed within student licences? Thank you!