Piklist Taxonomy Tussle

piklist_taxonomy_tussle.php

<?php
/*
Title: Post Submit
Method: post
Message: Ninja saved. View here: <a href="/coolninja/">Ninja List</a>
*/

  // Where to save this form
  piklist('field', array(
    'type' => 'hidden'
    ,'scope' => 'post'
    ,'field' => 'post_type'
    ,'value' => 'coolninja'
  ));

  // These are the usual elements, as Piklist fields ------------------------

  piklist( 'field', array(
    'type'  => 'text'
    ,'scope' => 'post'
    ,'field' => 'post_title'
    ,'label' => 'Ninja name'
  ));

...

  // These are the taxonomies with scope asserted ----------------

  piklist( 'field', array(
    'type'  => 'text'
    ,'scope' => 'taxonomy'
    ,'field' => 'ninjacolor'
    ,'label' => 'Ninja Color'
  ));

  piklist( 'field', array(
    'type'  => 'text'
    ,'scope' => 'taxonomy'
    ,'field' => 'ninjaelement'
    ,'label' => 'Ninja Element'
  ));

  piklist( 'field', array(
    'type'  => 'text'
    ,'scope' => 'taxonomy'
    ,'field' => 'ninjaskill'
    ,'label' => 'Ninja Skill'
  ));

  // These set post status to publish, and creates the submit button ----------

  piklist('field', array(
    'type' => 'hidden'
    ,'scope' => 'post'
    ,'field' => 'post_status'
    ,'value' => 'publish'
  ));

  piklist('field', array(
    'type' => 'submit'
    ,'field' => 'submit'
    ,'value' => 'Submit'
  ));
  
  ?>
  
  <?php 
  // These set the cpt and taxonomies ----------
  
  <?php
/*
Plugin Name: coolninja
Plugin URI: http://rhust.com/coolninja
Description: This is the core of onecoolninja.
Version: 0.1
Author: Robert Hust
Author URI: http://rhust.com
Plugin Type: Piklist
License: GPL2
*/

  add_filter('piklist_post_types', 'ocn_post_type');
  function ocn_post_type($post_types)
  {
      $post_types['coolninja'] = array(
        'labels' => piklist('post_type_labels', 'CoolNinja')
        ,'title' => __('Enter a new title')
        ,'menu_icon' => 'dashicons-universal-access-alt'
        ,'public' => true
        ,'has_archive' => true
        ,'rewrite' => array('slug' => 'coolninja')
        ,'supports' => array('title','editor','excerpt','author','revisions')
        ,'taxonomies' => array('ninjacolor','ninjaelement','ninjaskill')
      );
      return $post_types;
  }

  add_filter('piklist_taxonomies', 'ninja_taxonomies');
   function ninja_taxonomies($taxonomies){

  $taxonomies[] = array(
    'post_type' => 'coolninja'
    ,'name' => 'ninjacolor'
    ,'configuration' => array(
      'hierarchical' => true
      ,'labels' => piklist('taxonomy_labels', 'Colors')
      ,'page_icon' => piklist('url', 'piklist') . '/parts/img/piklist-page-icon-32.png'
      ,'show_ui' => true
      ,'query_var' => true
      ,'rewrite' => array(
        'slug' => 'ninjacolor'
      )
      ,'show_admin_column' => true
      ,'list_table_filter' => true
      ,'meta_box_filter' => true
      ,'comments' => true
    )
  );

  $taxonomies[] = array(
    'post_type' => 'coolninja'
    ,'name' => 'ninjaelement'
    ,'configuration' => array(
      'hierarchical' => true
      ,'labels' => piklist('taxonomy_labels', 'Elements')
      ,'page_icon' => piklist('url', 'piklist') . '/parts/img/piklist-page-icon-32.png'
      ,'show_ui' => true
      ,'query_var' => true
      ,'rewrite' => array(
        'slug' => 'ninjaelement'
      )
      ,'show_admin_column' => true
      ,'list_table_filter' => true
      ,'meta_box_filter' => true
      ,'comments' => true
    )
  );

  $taxonomies[] = array(
    'post_type' => 'coolninja'
    ,'name' => 'ninjaskill'
    ,'configuration' => array(
      'hierarchical' => true
      ,'labels' => piklist('taxonomy_labels', 'Skills')
      ,'page_icon' => piklist('url', 'piklist') . '/parts/img/piklist-page-icon-32.png'
      ,'show_ui' => true
      ,'query_var' => true
      ,'rewrite' => array(
        'slug' => 'ninjaskill'
      )
      ,'show_admin_column' => true
      ,'list_table_filter' => true
      ,'meta_box_filter' => true
      ,'comments' => true
    )
  );

  return $taxonomies;
  }
// I've tried 'hierarchical' => false as well