Hi, I am having problems with displaying the correct images in facebook when someone shares my post at http://techdwarf.com
I have added the image url to the social tab of WordPress SEO by Yoast plugin.
The Open Graph Warnings in facebook states Provided og:image is not big enough. Please use an image that's at least 200x200 px.
My images were initially 150x150 px. Because of the Open Graph Warnings, I have resized them to 200x200 px but somehow facebook doesn't sense it. I have used facebook object debugger
Any advice would be appreciated.