Google reader/RSS sync problems

I have been having a very strange bug while syncing my Google Reader account on Reeder and Newsify for the iPhone. I have been getting duplicate and old (up to 3 weeks) articles. When I mark all as read and re-sync I get the same articles with new ones again. I though at first that it was a Reeder app problem but started using Newsify and got the same thing.

Anyone else having this problem?

It's becoming very annoying. This morning I had 700+ articles "unread"

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