MB Block and MB Group Cloning display Issue

Hi

I have created a block and have an issue where the block does not load any input field styles inside Gutenberg.

My block

add_filter( 'rwmb_meta_boxes', function( $meta_boxes ) {
    $meta_boxes[] = [
        'title'           => 'Carousel Block',
        'id'              => 'dc-carousel-block',
        'description'     => 'Carousel with product support',
        'type'            => 'block',
        'icon'            => 'screenoptions',
        'category'        => 'dc-blocks',
        'context'         => 'side',
        'render_template' => __DIR__ . '/template/dc-carousel-block-template.php',
        'enqueue_style'   => plugin_dir_url( __FILE__ ) . 'css/splide.min.css', //loads per instance of a block
        'enqueue_script'  => plugin_dir_url( __FILE__ ) . 'js/splide.min.js', //loads per instance of a block
        'supports' => [
            'align' => ['wide', 'full'], //Gutenberg align class
        ],
        'keywords'          => ['carousel', 'product', 'listing', 'ecommerce'],
        'multiple'          => true,
        'reusable'          => false,
        'preview' => [
            'image'       => '', // Image ID
            'title'       => 'Carousel',
            'description' => 'Carousel with product support',
        ],
        'fields' => [
            'type' => 'group',
            'id'   => 'slider',
            'name' => 'Slider',
            'group_title' => 'Test123',
            'clone' => true,
            'sort_clone' => true,
            'collapsible' => true,
            'fields' => [
                [
                    'id'               => 'image',
                    'name'             => 'Image',
                    'type'             => 'file_advanced',
                    'force_delete'     => false,
                    'max_file_uploads' => 1,
                    'max_status'       => false,
                ],
            ],
        ],
    ];
    return $meta_boxes;
} );

When I go to the admin editor for the block it displays like this...

I am including the Metabox addons via composer and have checked if the class exists for the MB Groups and it does exist.

if ( class_exists( 'RWMB_Group' ) ) { echo "yes" }

I checked the browser to see if any JS/CSS was being loaded. I found that there was no MB Groups related scripts being called e.g. group.js, clone.js and group.css. So not sure what is going on?

my composer.json file

{
  "repositories":[
    {
      "type": "composer",
      "url": "https://wpackagist.org"
    },
    {
      "type": "composer",
      "url": "https://packages.metabox.io/mykeyhere"
    }
  ],
  "require": {
    "wpackagist-plugin/meta-box": "dev-trunk",
    "wpackagist-plugin/mb-comment-meta": "dev-trunk",
    "wpackagist-plugin/mb-rest-api": "dev-trunk",
    "wpackagist-plugin/meta-box-text-limiter": "dev-trunk",
    "meta-box/mb-admin-columns": "dev-master",
    "meta-box/mb-blocks": "dev-master",
    "meta-box/mb-custom-table": "dev-master",
    "meta-box/mb-frontend-submission": "dev-master",
    "meta-box/mb-revision": "dev-master",
    "meta-box/mb-settings-page": "dev-master",
    "meta-box/mb-term-meta": "dev-master",
    "meta-box/mb-user-meta": "dev-master",
    "meta-box/mb-user-profile": "dev-master",
    "meta-box/meta-box-conditional-logic": "dev-master",
    "meta-box/meta-box-geolocation": "dev-master",
    "meta-box/meta-box-group": "dev-master",
    "meta-box/meta-box-include-exclude": "dev-master",
    "meta-box/meta-box-tabs": "dev-master",
    "divengine/div": "^5.1"
  },
  "extra": {
    "installer-paths": {
      "vendor/meta-box/meta-box/": ["wpackagist-plugin/meta-box"],
      "vendor/meta-box/mb-comment-meta/": ["wpackagist-plugin/mb-comment-meta"],
      "vendor/meta-box/mb-rest-api/": ["wpackagist-plugin/mb-rest-api"],
      "vendor/meta-box/meta-box-text-limiter": ["wpackagist-plugin/meta-box-text-limiter"],
      "vendor/meta-box/{$name}/": ["type:wordpress-plugin"]
    }
  },
  "autoload": {
    "files": [
      "vendor/meta-box/meta-box/meta-box.php",
      "vendor/meta-box/mb-comment-meta/mb-comment-meta.php",
      "vendor/meta-box/mb-rest-api/mb-rest-api.php",
      "vendor/meta-box/meta-box-text-limiter/text-limiter.php",
      "vendor/meta-box/mb-admin-columns/mb-admin-columns.php",
      "vendor/meta-box/mb-blocks/mb-blocks.php",
      "vendor/meta-box/mb-custom-table/mb-custom-table.php",
      "vendor/meta-box/mb-frontend-submission/mb-frontend-submission.php",
      "vendor/meta-box/mb-revision/mb-revision.php",
      "vendor/meta-box/mb-settings-page/mb-settings-page.php",
      "vendor/meta-box/mb-term-meta/mb-term-meta.php",
      "vendor/meta-box/mb-user-meta/mb-user-meta.php",
      "vendor/meta-box/mb-user-profile/mb-user-profile.php",
      "vendor/meta-box/meta-box-conditional-logic/meta-box-conditional-logic.php",
      "vendor/meta-box/meta-box-geolocation/meta-box-geolocation.php",
      "vendor/meta-box/meta-box-group/meta-box-group.php",
      "vendor/meta-box/meta-box-include-exclude/meta-box-include-exclude.php",
      "vendor/meta-box/meta-box-tabs/meta-box-tabs.php"
    ]
  },
  "config": {
    "allow-plugins": {
      "composer/installers": true
    }
  }
}