@jason– What am I looking for to duplicate the issue? I add hyphens in the field name… now, what should happen… or not happen?

@blair2004– Try downloading WP Helpers v1.6.0… you beat us to the download. It should be working fine.

We just updated the Piklist Checker to v0.6.0, and you can grab it here >

The documentation has been updated to support theme integration.

You will need to pass an extra argument, theme, after __FILE__ :

add_action('init', 'my_init_function');
function my_init_function()
{
  if(is_admin())
  {
   include_once('path-to-file/class-piklist-checker.php');
 
   if (!piklist_checker::check(__FILE__, 'theme'))
   {
     return;
   }
  }
}

Let us know if you still have issues.

@jonian– This should be fixed in v0.9.4.22. Let me know if you still have issues.

@jason– Could you test with the wp_editor function directly? Would like to know if this is a WordPress or Piklist bug.

@jason– Try upgrading to v0.9.4.21. I think that fixes the issue.

I think this was a combination of errors in Pikist and in your field code.

Try upgrading to v0.9.4.21 and then use this code:

  piklist('field', array(
    'type' => 'group'
    ,'label' => __('Blok')
    ,'field' => 'Blok'
    ,'add_more' => true
    ,'fields' => array(
      array(
        'type' => 'text'
        ,'field'    => 'blok_titel'
        ,'label'    => 'Blok Titel'
        ,'columns' => 12
        ,'required' => true
        ,'attributes' => array(
          'class' => 'large-text'
        )
      )
      ,array(
        'type' => 'textarea'
        ,'field'   => 'blok_introtext'
        ,'label'   => 'Blok introtext'
        ,'columns' => 12
        ,'attributes' => array(
          'class' => 'large-text'
        )
      )
      ,array(
        'type' => 'textarea'
        ,'field'   => 'blok_outtrotext'
        ,'label'   => 'Blok outrotext'
        ,'columns' => 12
        ,'attributes' => array(
          'class' => 'large-text'
        )
      )
      ,array(
        'type' => 'group'
        ,'field' => 'vraag-group'
        ,'add_more' => true
        ,'fields' => array(
          array(
            'type' => 'select'
            ,'field' => 'vraag'
            ,'label' => 'vraag'
            ,'columns' => 12
            ,'choices' => array( 0 => "Selecteer..." ) + piklist(
                get_posts(
                   array(
                    'post_type'      => 'post'
                    ,'posts_per_page' => '-1'
                    ,'orderby'        => 'title'
                    ,'order'          => 'ASC'
                   )
                   ,'objects'
                 )
                 ,array(
                   'ID'
                   ,'post_title'
                 )
            )
          )
        )
      )
      ,array(
        'type'    => 'file'
        ,'field'   => 'blok_image'
        ,'label'   => __( 'Image', 'piklist-demo' )
        ,'options' => array(
          'modal_title' => __( 'Add File(s)', 'piklist-demo' )
          ,'button'      => __( 'Add', 'piklist-demo' )
        )
      )
    )
  ));

I essentially pulled the code from Piklist Demos > Advanced > Content Section (Grouped).

Let me know if that works for you.