This will be fixed in next release. For now you can add this patch in your theme functions.php file.
open your function.php
and add as first function
/**
* Disblae WPES on media library search
* @param type $enabled
* @return boolean
*/
function disbale_wpes_on_media_search($enabled) {
if ((defined('DOING_AJAX') && DOING_AJAX) && isset($_REQUEST['action']) && $_REQUEST['action'] == 'query-attachments') {
return false;
}
return $enabled;
}
add_filter('wpes_enabled', 'disbale_wpes_on_media_search');