Hey Steven. Thanks for the note; sorry to hear you’re having issues. I was unable to recreate this on my end using multiple browsers so my guess is it’s a conflict of some kind.
Please confirm that you’re on the 2.0.4 release for both The Events Calendar and Events Calendar PRO. Please also resave your permalinks (no need to make any changes, just resave) and confirm whether you’ve updated any other plugins recently that could have caused this to happen. Lastly, let me know what browser and WP version you’re using. We’ll do what we can to assist from there.