In the past couple of weeks I have had intermittent problems when sharing any post to Facebook, with no thumbnail options appearing despite there being several images in the post. Now every post I try to share to Facebook appears to have no thumbnail. This is not a Facebook fault because I am able to grab URLs from all kinds of other sites and paste them to my Facebook status with plenty of thumbnail options appearing. My site is http://www.lizcleere.com.
Any advice would be greatly appreciated.