Hi,
I’m using your theme in more than 20 sites using different plugins combinations. I did some investigation and I found that
-) the problem occurs only on sites where I’m using woocommerce (latest version)
-) in the sites whith woocommerce if I update only the Kadence Toolkit plugin without updating the template the select is working. the problem occurs only after updating the template.
In all the sites where I have the problem I’m using Siteorigin page builder and latest wordpress version.
thanks