Perma links for missed schedule posts not working in facebook

Hi,

Occasionally some scheduled posts were not posted in my website with a message ‘missed schedule’. The interesting thing is that such posts, when finally posted, could not be crawled by facebook (share on facebook button on post page, or directly on facebook) but the link works when viewed in browser.

For eg. this link failed with ‘missed schedule’ and then later I set it to ‘Draft’ and then posted back. If someone can try to share it on facebook, it will be obvious. Your help is much appreciated.

Cheers
Guna