WYSYWG editor delets content!

Hi Long,

first of all: Thank you for mentioning Immolist Mallorca in the showcase! And thanks for the quick reply.
- The debugging information does not show any hint what is wrong
- The php code is attached below.
- In a short video you can see whats happens:
https://drive.google.com/file/d/1BLts2zzSQkgMrjrI4ulwO8ovARwwW2MI/view
It seems to be a very rare case. I occurs only when I put the shortcode in the standard content editor of a page. The same shortecode in the custom field works without any problem. It is not a big thing for me since I can build up the site without the shortcode in the standard content editor. Generally I am very happy with Metabox.

Kind regards, Andreas

<?php
add_filter( 'rwmb_meta_boxes', 'il_pagefields' );

function il_pagefields( $meta_boxes ) {
$prefix = '';

$meta_boxes[] = [
    'title'      => __( 'PageFields', 'il-mallorca' ),
    'id'         => 'pagefields',
    'post_types' => ['page'],
    'priority'   => 'low',
    'fields'     => [
        [
            'name' => __( 'Extratext', 'il-mallorca' ),
            'id'   => $prefix . 'extratext',
            'type' => 'wysiwyg',
        ],
        [
            'name'              => __( 'Schemadata', 'il-mallorca' ),
            'id'                => $prefix . 'schemadata',
            'type'              => 'textarea',
            'label_description' => __( 'Schema', 'il-mallorca' ),
            'save_field'        => 1,
        ],
    ],
];

return $meta_boxes;

}