The problem probably doesn’t occur on your demo site, because there are no events in the list of upcoming events (or at least I got none today).
Nevertheless I think its there in your released version.
Two days ago, I found out, that you can customize the list widget template by placing your own list-widget.php in your theme folder. I did this and removed the calls that included the tags (e.g. the tribe_events_event_classes() call). Thats why the tags don’t appear on my page anymore.
So I guess, I’m fine (still waiting for google to recrawl the site and remove the entries and verify my success), but you guys might want to take a look at your default liste-widget.php template file, because its really annoying for new users.
Cheers!
