OK, I figured out that I had turned on the "Perissions Only By Admin" in the Admin Menu. When I turned it back off users could finish the wizard without the error
To be clear, the files did upload, but were never fully added so they don't show up in the folder. Now I have a bunch of "orphaned" files that have been uploaded. How do I get rid of them without harming the valid files that are displayed in the folder?
So, is this a bug?