This is so weird. I have a site http://www.clarkesvillewritingsociety.org/ where there are several members with the Author role (and they're really authors!).
The authors who have posted more than once have their posts showing just fine... with one exception, Marie. http://www.clarkesvillewritingsociety.org/author/mkinneer/
Only the most recent post is displayed completely. All the others show only the post title.
I am using the Path theme, but I have confirmed the problem also exists with Twenty Eleven.
I copied the HTML from one of the non-displaying posts and created a post of my own with the same code. It displayed just fine.
Marie is not happy that her posts are not showing, and I sure hope you can help.