I'd put the issue into the <a href="https://github.com/pfefferle/wordpress-uf2/issues/15">log on GitHub for uf2</a> and got the following back from David Shanske which confirms my suspicion:
<blockquote>It is the fact that the theme styles hentry</blockquote>
hentry is a microformat and shouldn't be used as a theming class: http:/