I've been seeing this for a while now, and am pretty sure something changed on blogspot.com with their Atom feeds
When I subscribe to a feed like this: http://venitism.blogspot.com/feeds/posts/default
The feed that gets parsed and displayed when clicking on a story in my River of News is this: http://venitism.blogspot.com/feeds/8572075396722689632/comments/default
For some reeason although the headline and truncated story display properly in my RoN, the url link goes to the comments of the post, which results in a display error.
This is replicable with all blogspot.com Atom feeds