Since updating to wordpress 3.5 organize series stops the feed from working. I updated my theme(woothemes canvas) and even reinstalled it. I disabaled all my plugins and turned them on one by one to find 2 culprits..this one, as well as gravity forms aweber add in. With those 2 disabled,(as well as on their own) the feed on the site did not work.
Here is a staging site.