Performancing and Blogger...not happy

I seem to be having random problems with Performancing and Blogger.  And I'm not the only one apparently.  Most others are claiming it's a problem with Blogger.  One of the problems I get is an expired certificate so I know that's Blogger's fault.  The other problem is an Atom.xml error that stops me from posting an entry.

This isn't cool!  I was just starting to like Performancing.  Maybe it's time to leave Blogger?