FeedBurner to Twitter has always had problems. Now Google Drops it from FeedBurner.
Does this mean FeedBurner will have a Google+ feature soon?
Google Drops Auto-Publishing to Twitter Feature from FeedBurner; AlternativesView or comment on Danny Silva's post »
If you have been using FeedBurner to auto-publish your RSS Feed to Twitter, here are some good alternatives to switch to.