Hello, @Cambium,
Some of our customers faced this issue, and they solved it by removing the cache, I tried to check it on your site using FTP but it did not work.
Please try following the steps in our guide regarding this matter:
https://docs.elementor.com/article/235-update-issues
I hope this information helped you solve your issue.
OR
I can see you have an active cache on your server as well: https://postimg.cc/vxgbH6P2 please first flush all the cache from the server and then remove the site cache and finally remove the browser cache and cookies and check back.
And let me know the result.
Regards 8Themes Team.