I'm having similar problem. The file lists do not appear for non-registered user, only admin. This is the shortcode used [wpfilebase tag = list id = '1, 2,4,3,5,6 'tpl = showcats table = 1], the result of what appears on this page is: http://vladiaqueiroz.com / blog /? page_id = 18. The file does not appear. The File Browser also does not appear. But when logged as admin can view and download all normal. The problem is that files do not appear to the visitor. If I put the file individually, without the use of lists, the file usually appears to the visitor. The problem is the lists. What do I do? I wrote on the site "fabi.me" but no answer came. Sorry my English, I'm translating from google.