My employer’s wordpress website domain was approved for the Twitter Summary Card (https://lh4.googleusercontent.com/-pxCHpxfSjIk/UeRBq5nA-KI/AAAAAAAAEzQ/e0ph5fQ_-aA/s800/Card%20Validator%20%20%20Twitter%20Developers.png). The website is jeepevents.offroadadventures.com.
When the website URL is included in a tweet the summary card shows up just fine. But when a URL to an actual post on the website is posted in a tweet, there is no summary card. Here is an example: https://twitter.com/4WheelParts/status/356843747553718272.
The wordpress site is using a plugin called WPSocial SEO Booster that adds custom Twitter Card meta data so each post. So I can not figure out why the Summary Card info is not show when the post URL is included in a Tweet.