The WYSIWYG has white color in the content and missing the toolbar when repeating

Here is the code. Yes, actually, I like to have a group of announcements inside of a company. Each announcement like a post with html including images and other shortcode support (such as embed video).

$meta_boxes[] = array(
	        'id'         => 'company_announcements',
	        'title'      => __( 'Company Announcements', 'imp' ),
	        'post_types' => array( 'company'),
	        'context'    => 'normal',
	        'priority'   => 'low',
	        'fields' => array(
	                array(
	                    'id'   => $prefix.'company_announcement',
	                    'name' => __( 'Announcement', 'imp' ),
	                    'type' => 'group',
	                    'clone' => true,
	                    'size' => 100,
	                    'fields' => array(
	                    	
	                    	array(
			                    'id'   => $prefix.'company_announcement_title',
			                    'name' => __( 'Title', 'imp' ),
			                    'type' => 'text',
			                    'size' => 60
			                ),
			                array(
			                    'id'   => $prefix.'company_announcement_date',
			                    'name' => __( 'Date', 'imp' ),
			                    'type' => 'date',
			                    'js_options' => array('dateFormat'=>'dd/mm/yy'),
			                    'size' => 60
			                ),
			                array(
			                    'id'   => $prefix.'company_announcement_content',
			                    'name' => __( 'Content', 'imp' ),
			                    'type' => 'wysiwyg',
			                    'size' => 60,
			                    'options' => array(
			                    	'textarea_rows' => 3,
			                    )
			                ),
                    	)
	                ),
                ),
	        'validation' => array(
                'rules'    => array(
                   
                )
            )
        );

Actually, I have to used an older version of Meta Box, because the Meta Box plugin which I downloaded from the WordPress Plugins panel, generating the same Notices errors.

It's version 1.1.2

Here is the header of the plugin MB Group
/**
* Plugin Name: MB Group
* Plugin URI: https://metabox.io/plugins/meta-box-group/
* Description: Add-on for meta box plugin, allows you to add field type 'group' which put child fields into 1 group which are displayed/accessed easier and can be cloneable.
* Version: 1.1.2
* Author: Rilwis
* Author URI: http://www.deluxeblogtips.com
* License: GPL2+
*/