Hi,
I should have included with my original message that I’d already checked for the upgrade and applied the 4.4.x upgrade that was available.
Currently there aren’t any console errors. However, there does appear to be a jQuery issue on this page that isn’t being reported. The community events form is rendered via an AJAX call, correct?
I’ve initiated a staging site deploy on WP Engine currently to test more thoroughly and will follow up with additional issues or a solution.