Hi Hunter,
I can confirm that I have installed a copy of the site on my local server, deactivated all plugins and switched to the Twenty Sixteen theme and the issue is still occurring. The cache has also been cleared. In fact, it appears unrelated to the Community add-on (I deactivated that too) but rather the base The Events Calendar plugin. We are not using the Pro version.
I have also disabled my template customisations and there are no javascript errors.
I have reverted back to the last two available versions of the plugin and the issue persists.
Cheers,
Tracey