OpenGraph doesn't work ?

Hi Everybody,

I enabled the Opengraph tool on the Yoast settings. When I share my articles via Facebook, it doesn’t take into account the right image (of my article). Just try it to understand.
Click on my website http://www.digitude.fr/intelligence-artificielle-facebook-ouvre-un-nouveau-centre-a-paris/

Click on the Facebook button to share the content. You will see the wrong image. According to the articles, the image doesn’t appear, the text doesn’t appear…

I saw that several people have the same problem…

This is my OG: Code from Yoast :

<meta property="og:title" content="Intelligence artificielle : Facebook ouvre un nouveau centre à Paris - Digitude" />
<meta property="og:description" content="Cela fait plusieurs mois que le célèbre réseau social Facebook investit dans le domaine de l'intelligence artificielle. Après avoir..." />
<meta property="og:url" content="http://www.digitude.fr/intelligence-artificielle-facebook-ouvre-un-nouveau-centre-a-paris/" />
<meta property="og:site_name" content="Digitude" />
<meta property="article:publisher" content="https://www.facebook.com/digitude.officiel" />
<meta property="article:author" content="https://www.facebook.com/digitude.officiel" />
<meta property="article:section" content="Réseaux sociaux" />
<meta property="article:published_time" content="2015-06-03T10:53:29+00:00" />
<meta property="article:modified_time" content="2015-06-04T21:34:26+00:00" />
<meta property="og:updated_time" content="2015-06-04T21:34:26+00:00" />
<meta property="og:image" content="http://www.digitude.fr/wp-content/uploads/2015/06/facebook-440786_640.jpg" />

Thank you !

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