Columns are not displayed

my code

add_filter( 'rwmb_meta_boxes', 'your_prefix_register_meta_boxes' );

function your_prefix_register_meta_boxes( $meta_boxes ) {

    $meta_boxes[] = array (
      'id' => 'test',
      'title' => 'test',
      'pages' =>   array (
         'post',
         'page',
      ),
      'context' => 'normal',
      'priority' => 'high',
      'autosave' => false,
      'fields' =>   array (
         
        array (
          'id' => 'text_1',
          'type' => 'text',
          'name' => 'Text Field',
          'columns' => 4,
        ),
         
        array (
          'id' => 'datetime_5',
          'type' => 'datetime',
          'name' => 'Date Time Picker',
          'columns' => 8,
        ),
      ),
    );

    return $meta_boxes;

}

problems with the columns remained
eg 'columns' => 12, and others

Hi
please consider my applications
The fact is that I tried on different servers both online and offline
problems remain in the local server VAMP does not render correctly the HTML code on servers, it is rendered correctly, but the problem is that it does not reflect the objects according to the specified sizes
I also saw that if I use a group of fields, columns not be reflected in any way
tested the same on the meta-box Version 4.8.5 and the column Version 0.1.1
in these versions everything works ok. because I'm sure that the problem is in the latest updates
if I can help with the decision let me know I really like what you are doing and ready to help in the development and project

http://nmodels.hol.es/3.jpg