The plugin’s JS is not getting triggered after the second render. I fixed this by adding the following code to my site’s js file. If you don’t have a js file, you can add it within a <script> tag on your footer.php as well.
jQuery(document).on('gform_post_render', function(event, form_id, current_page){
jQuery(".swe_gf_phone_with_country_code").intlTelInput();
});
