Hi,
Thank you for the details. It seems like the issue was caused by an error in the console, which is coming from the product-enquiry-pro plugin directory, see: https://i.imgur.com/5pqyXWP.png
It might not be the direct cause though, as when I switched the plugin script from minified, to non-minified, it started working correctly on all browsers: https://i.imgur.com/lYPhwcd.png
It should be working correctly now, but I would still recommend investigating those remaining errors, just in case.
