I have added the Photo Card metadata to the pages of my website. Example in http://www.nightearth.com/showitem.php?item=fortress_kastel
My domain is whitelisted for photo cards ("*.nightearth.com is whitelisted for photo card"), and the item is shown perfectly in the validator.
However, tweets added to my profile do not show the image in the feed (such as in https://twitter.com/NightEarthCom). It is only shown if user clicks on “view photo”. Example: https://twitter.com/NightEarthCom/status/541236506229084160
Am I missing something? I would like the image to appear in my tweets without users having to click anything.