Twitter cards only works in one post

Mainweb_es · 2013-08-28T15:19:00.000Z

Hi:
I have a problem whith twitter cards. I follow every step to activate the cards and I received the confirmation mail. My web is whitelisted and everything is on green. But when I want to share a post the card is not displayed… It only work whith a single post of my blog.
My site is wordpress made and I have the JM twitter cards plugin to configure everything.
What´s wrong? Why only works whith a single post?

Thank you in advance.
My site is www.mainweb.es

RobLong · 2014-09-12T13:19:32.260Z

I have exactly the same problem. I have received the domain approval email and blog is on Wordpress.com

It works fine with this post http://blog.workable.com/how-to-write-job-descriptions-2/ but not with any others e.g. http://blog.workable.com/5-reasons-careers-page-is-costing-you-candidates/

I’m not sure if this is related but the URL that does work was, I am pretty sure, the URL I used in the card validator originally to get the “request domain approval” option.

Any help much appreciated! thanks.