facebook share button not picking the og:image as the default selected image

Question

I have used og:image tag with my facebook share button. It is not picking the og:image as default selected image, whereas that is the same one as being shown in facebook debugger.

What could be the possible reason ?

Answer 1

The linter/debugger has an issue/bug. It will display the image as if it passed muster. However, it won't be displayed correctly in the shared news feed. I've seen this time and time again.

Answer 2

It's possible a different image is being cached. I've read that if you review the page with Facebook URL Linter, it will reload the thumbnail images currently in the cache.

http://developers.facebook.com/tools/lint