[SmartCrawl Pro] - Fix broken Yoast imported featured images

wpmudev-smartcrawl-yoast-importer-images.php

<?php 
/**
* Plugin Name: [SmartCrawl Pro] - Fix broken Yoast imported featured images
* Plugin URI: https://premium.wpmudev.org/
* Description: Fix broken featured images when migrating from Yoast (as of 2.6.1)
* Author: Alessandro Kaounas @ WPMUDEV
* Author URI: https://premium.wpmudev.org/
* Task: 0/1135022585412927/1166540338383954
* License: GPLv2 or later
*/

add_action( "added_post_meta", function( $mid, $object_id, $meta_key, $_meta_value ){
    
    if( ! in_array( $meta_key, array( '_wds_opengraph', '_wds_twitter' ) ) || ! wp_doing_ajax() || ! is_admin() ){
        return;
    }

    if( is_array( $_meta_value['images'] ) ){
        foreach( $_meta_value['images'] as $index => $image ){
            if( ! $image ){
                unset( $_meta_value['images'][$index] );
            }
        }
    }

    update_post_meta( $object_id, $meta_key, $_meta_value );

}, 10, 4 );