WordPress version: 3.5.2
WordPress SEO version: 1.4.12
I did this: Turned on the Social Twitter, Facebook settings.
I expected the plugin to do this: Add those items to the head.
Instead it did this: Broke the layout of my site when using Thematic and a child theme. Seems to work fine with 2012. Thematic doesn't display a featured image and it works fine there, so it seems to have to do something with my child theme and the way it displays a featured image, but I can't figure it out.