I work at Storify, and we have a problem when we want to share some stories on Facebook. We use og meta tags to make sure this story is accessible. We mainly use og: title, og: site_name, og: type, og: url, og: image and og: description.
For some stories, it works like a charm, and it looks amazing, for example. http://storify.com/elevour/smog-attacks-beijing-yet-again

But some stories, this does not work at all, for example. http://storify.com/documentally/40-at-40

We use the same script for both, and OpenGraph.in can detect my meta tags in each separate story ... http://www.opengraph.in/?url=http%3A%2F%2Fstorify.com%2Fdocumentally%2F40- at-40 & format = html
Do you have any idea what this could be? Is this a bug from Facebook?
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