I upgraded to Word Press 3.5 and everything seemed to be working fine, but now a week or two later I've noticed that none of my featured images are showing up any longer (www.jtwindows.com). There are only two posts where the featured images show up and I noticed that for whatever reason, for those two posts only, when I go to set the featured image, the upload screen/media manager screen has not been upgraded to the new 3.5 appearance. All my other posts when I go to set featured image the upload/media manager window has changed. Regardless, all the images show up in the posts on the admin side, just not on the actual site. How do I fix this? Can I downgrade back to 3.4.2 so I no longer have these issues?