Content Invisible issue when there is original_feed_id custom field

We are having issue with some of our post content. There are invisible in client side when the post have original_feed_id field used. All the posts using this custom fields have the same content display issue.

Where as other post are working fine and they don't have above mentioned custom field used.

These are the 2 of them, that are having the issue currently.
1. http://ulistic-projects.com/compunet/are-there-bugs-in-your-apple-is-siri-revealing-your-secrets-2/
2. http://ulistic-projects.com/compunet/does-a-certain-number-or-contact-keep-calling-you-its-about-time-to-block-them-on-your-iphone-with-ios7/

Can you please check on this quickly ?

Thank You.