While Facebook have not yet marked this issue as resolved, there has been no further incidents of failed posts since Feb 6th so we will close this incident.
We will continue to monitor this bug with Facebook. Thank you for your patience while this matter was ongoing.
We are currently investigating an issue with Instagram publishing, where you receive the following error message " Received Facebook error response of type OAuthException: The requested resource does not exist (code 24, subcode 2207006) 'Media Not Found - The media cannot be found.'