Sometimes when you insert a Visual Composer Cell you will see the post body content repeated in each of those Cells.
This is mostyl due to other Plugins applying filters to the_content().

This can be solved with this filter:

apply_filters( 'ddl_apply_the_content_filter_in_cells', true, $this )

Example:

add_filter( 'ddl_apply_the_content_filter_in_cells', 'my_override_to_content_filter' );

function my_override_to_content_filter( $bool, $cell ){
    $content = $cell.get('content');

    if( strpos( $content, 'find me') ){
        $bool = false;
    }

    return $bool;
}

YT and Forum:
https://onthegosystems.myjetbrains.com/youtrack/issue/tssupp-1945
https://wp-types.com/forums/topic/theres-a-bug-when-using-layouts-plugin-with-the-elementor-builder/