Hi Jon. Sorry you’re experiencing this, and thanks for the link to your site.
I noticed console errors at your site: http://cl.ly/0z3O2k1n3O2R (the red-colored ones)
If needed, you may reference our KB article Using Google Chrome Developer Tools.
Could you please make sure all your Modern Tribe plugins (and WordPress core) are at their latest versions?
Once you verify you’re on the latest versions, please test to see if the issue is still happening for you.
If it is, please follow our Testing for Conflicts Guide and see if that helps narrow down the cause of this.
If it doesn’t, would you mind enabling WP_DEBUG and sharing any messages you see while navigating your site’s home page, events page, single-event pages, and any other of your site’s pages relevant to this ticket?
After all that, please let us know if you think you’ve found a bug.
Thanks.