Whitelisted ok, validator ok, but no card when sharing content

[fanksy]

Hi, when I validate a content, everything is ok:
INFO: Page fetched successfully
INFO: 12 metatags were found
INFO: twitter:card = photo tag found
INFO: Card loaded successfully
Even is whitelisted. However, when I share a content, the tweet card doesn’t work.

What should I do?

Thanks!