Dispatch Server Stack - Joe Workman

Does any one have any experience with this stack? I seem to have put it together and its in working order, my only problem is with the number of uploads that can be made before the page redirects. I have set the number of uploads to 30 but when i test the stack -

  1. I press select images
  2. Pick up an image from my computer
  3. Before i can press upload or select another image the page has redirected me to my final page.
    I need to allow my users to select around 15 - 20 photos form their computer, then upload all, then the page redirect. Am I doing something wrong?
    Here is a link to my page

Thanks for any help!