$_FILES Array getting empty when using $this->form_validation->run()

try this (not in JQUERY).
remove the die() in your controller and the redirect function.

Code:

Dropzone.options.propertyForm({
      addRemoveLinks: true,
      paramName: "file",
      maxFiles:11,
      autoProcessQueue: false,
      uploadMultiple: true,
      acceptedFiles: "image/*",
      maxFilesize: 1,
      parallelUploads: 10,

      init: function () {
          var myDropzone = this;
          document.getElementById("submit-all").addEventListener("click", function(e) {
            e.preventDefault();
            e.stopPropagation();
            $(window).scrollTop(0);

            if ( $("#property-form").valid() ) {
              myDropzone.processQueue();

            }

            });
                  // Listen to the sendingmultiple event. In this case, it's the sendingmultiple event instead
           // of the sending event because uploadMultiple is set to true.
           this.on("sendingmultiple", function() {
             console.log('send event');
           });
           this.on("successmultiple", function(files, response) {
             console.log(response);
           });
           this.on("errormultiple", function(files, response) {
             console.log('error');
           });

       }  
   });

Buddy,
Where I have to try this piece of code ?