Meta Box

I have the same issue with v1.1.6. Here is my code:

$meta_boxes[] = array(
        'title'      => __( 'Legal Area Sections', 'textdomain' ),
        'post_types' => 'page',
        'include'   => array(
            'relation'    => 'OR',
            'template' => array( 'page-legal.php' ),
        ),
		'fields'     => array(
			array(
				'name' => 'Section', // Optional
				'id' => 'legal_section',
				'type' => 'group',
				'clone' => true,
				// List of sub-fields
				'fields' => array(
					array(
						'id'   => 'title',
						'name' => __( 'Section Title', 'textdomain' ),
						'type' => 'text',
					),
                    array(
                        'id'   => 'content',
                        'name' => __( 'Section Content', 'textdomain' ),
                        'type' => 'wysiwyg',
                    ),
					// Other sub-fields here
				),
			),
		),
	);

Just an extra note. This is how I fixed it:

I deleted my existing extensions. Downloaded them again from the website and reinstalled them. This seems to have fixed the problem.

Any change we can get an auto-update for extensions if you update the main plug-in?