I had an issue where a student submitted a Google doc link to a Canvas assignment - then when they were doing peer edits (separately), she needed to share the file with another student. Google was telling her that she was no longer the owner of the document. In GC this would be easy, the student would just unsubmit. In Canvas, now she is having to make a copy of her document and create a new one, which is burdensome and not good practice for kids who are just learning how to organize their own files. Several of my other students didn't have this problem, though they followed the same steps as this student. Any thoughts?