Facebook Like button not registering my like

Question

Is anyone experiencing what I'm experiencing when you go to http://aentan.com/design/more-natural-design-comps/ and click on the Facebook Like button. When I click on it, it changes to "1 person" and then the comment field appears but after half a second it goes back to the original like button like it did not register my click.

I'm using the social plugin on my WordPress single.php template and all the Like buttons on other pages work.

If I remove the open graph meta tags the Like button works.

<meta property="og:title" content="<?php single_post_title(); ?>"> <meta property="og:type" content="article">

What's wrong?