Hi! In my admin panel I don't use Visual editor in wysiwyg (disabled it in my user settings). I always use Plain Text by default.
For Metabox I use this code:
array(
'id' => $prefix . 'docs',
'type' => 'group',
'clone' => true,
'sort_clone' => true,
'add_button' => esc_html__( 'add', $mx ),
'fields' => array(
array(
'id' => 'h2',
'type' => 'text',
'name' => esc_html__( '', $mx ),
'placeholder' => esc_html__( 'header', $mx ),
),
array(
'id' => 'text',
'type' => 'wysiwyg',
'name' => esc_html__( '', $mx ),
'raw' => true,
'options' => array( 'textarea_rows' => 10, ),
),
),
),
As you can see, this code allow me to clone field with wysiwyg type. BUT! When when I add a new field by click to "add" button, Metabox is switching to tinymce although it even not exists!
This is console screenshot: https://i.ibb.co/R9kNHt5/Screen-Shot-2020-04-18-at-13-26-51.png
Same stuff happens when I just moving field with wysiwyg type ('sort_clone' => true).
Hope you can understand me.