Everytime i try to share a wordpress post in my Linkedin it doesn´t pick up the imagem in the article. Don´t have any problem doing this on Facebook for example and i think everything in the Open Graph Meta is correct because my source code says:

meta property="og:image" content="http://smartkiss.net/assets/online-ad.jpg" 

The dimensions are more than 80 x 150 pixels as Linkedin recommends. Any idea why this might be happening ? 

Thanks