Facebook preview not working

Dear all,

On http://www.dutchreview.com we’ve encoutered a problem with sharing links on FB. Namely, the nice box and previewthumbnail don’t show up with the last post. Is does show up for old posts, so it’s related to an error of somekind in the publishing process.

I just implemented the google trackingcode to the footer this morning, and we’ve updated NGFB open graph. Jetpack has also been turned off (that caused any other problems)

Anybody got some leads? Let me know! Thank you!