WARN: No metatags found - but only in the last posts


Since a few weeks ago our Twitter Cards don’t work. The extrange thing is that the TC of the old posts look fine but the new ones return a WARN: No metatags found from Twitter Card Validator.
We have tried everything they say here, but nothing works.
This is a link to a correct TC:

And this other one a new post that doesn’t work:

Does anybody have any idea.
Thanks in advance.


Both links appear to generate a card when I check them.


Thank you so much for your answer.
Please, check this other one (I mean at Twitter Card Validator) :

It seems that the error persists but only in the most recent posts. This is a real mystery.
It seems as if Twitter took some time to accept the twitter cards from our page.

Thanks again.


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