Hi,
Thank you for the details!
I checked the URL, and I noticed 2 separate jQuery enqueues in the source. One is at the header, enqueued by WordPress, which is perfectly correct. But there is another one, on the bottom of the page: https://i.imgur.com/ELJZUVm.png
That is causing the issues. Using multiple jQuery instances within the same scope is not going to work correctly, as the latter one will override every extension loaded to the first instance.
If you remove the second jquery from the bottom of the page, it will resolve the issue.
