The stream items have stopped appearing in the Community Menu (menu is set for stream items to appear).
I added a JReviews listing with a very long table on 2 Dec and thought there may have been a loading issue so deleted it from the Stream items in the admin area and cleared all cache, but stream items still do not appear.
You can find the problem
here (they should appear for guests and logged in users).
The JReviews table can be found
here