My first guess would be that there may be an index file at /folder/folder left over from a static site that was in place in the past. In that case wordpress won't process that request.
If that's not the case, you could try adding another request after to see if that one works. If not, I'd look to the last working URL and see if that offers any clues about why the plugin stops working after that. It process all URLs sequentially, so it could be an issue with one of the last two URLs.
If you want to send me the specifics of what you have in the last couple of rows privately I might be able to help you debug further. You can use the contact form at http://www.scottnelle.com/contact/