Cards don't show for articles posted recently


#1

The site www.ghanaweb.com validates the summary_large_image card fine.

However when tweeting a recent article (this is a news site, so all relevant articles are max a day old), I never get the card included.

An example URL is http://www.ghanaweb.com/GhanaHomePage/SportsArchive/artikel.php?ID=348038

Any clou how to get this fixed?
Thanks, Joost