Datatables Module not Sorting all Columns
I used a hook_views_data_alter() to add 'click sortable' to the field that didn't have that option.

/**
 * Implements hook_views_data_alter().
 */
function utagta_helper_views_data_alter(&amp;$data) {
  // Allow the views fields to be sortable.
  $data['views']['view']['field']['click sortable'] = TRUE;
}