Include/Exclude broken with update

I have just updated Meta Box to 5.2.8 and fields using 'include' are no longer appearing. code below:

 $meta_boxes[] = array(

        'id'          => $prefix . 'home_header_img',
        'title'           => esc_html__( 'Header image', 'textdomain' ),
        'description' => esc_html__( 'Appears above the page title above main copy', 'textdomain' ),
        'post_types'  => array( 'post', 'page' ),
        'context'     => 'normal',
        'priority'        => 'high',

        'include' => array(
            'template' => array( 'page-templates/template-home.php' ),
        ),

        'fields'     => array(
            array(
                'name'                => esc_html__( 'Image', 'textdomain' ),
                'id'              =>  $prefix . "header_img",
                'desc'                => esc_html__( 'Appears above the page title above main copy', 'textdomain' ),
                'type'                => 'image_advanced',
            ),
        ),
    );

If I remove the include bit, the boxes appear:

     'include' => array(
            'template' => array( 'page-templates/template-home.php' ),
        ),