"Download all files" for an assignment creates a zip file that when unzipped on Windows creates one folder for each student. It is extremely inconvenient to have 20 folders that each contains one file that no longer has the student's name on it. On a Mac, the files all unzip to a single folder, but because the files have a "/" in the filename, these files cannot be stored on Microsoft OneDrive. So I have to either move 20 files or change 20 filenames.

I think that the fix could be as easy as changing the delimiter between the prepended student name and the filename to a character that works on all major filesystems like "-" or "_".