We altered how the site communicates with non-logged in users/guests, and it sounds like you are getting tied up with that. In a nut shell, guests now get a cached version of the site instead of a live feed. This allows us to focus server power to our membership rather then giving live data to any bot or guest on the site.
I can't recreate the issues, so I'd suggest just clearing cookies and cache for starters. If you browser inadvertently picked up some settings from our new setup, the only solution might be a clean slate