We are aware of an issue with Facebook's network intermittently affecting replies to some comments in Engage.
During this time, you may see the following error message when replying to fan posts in the Engage module:
"Unsupported post request. Please read the Graph API documentation at https://developers.facebook.com/docs/graph-api
(code 100, subcode 33)
Please be aware that despite these error messages, your messages may still be successfully sent to Facebook, and as such it is recommended you confirm this natively before sending the message again.
Facebook has confirmed the issue on their end and are currently working on resolving it.
Please reach out to the Falcon Support team via the in-app chat for further information.
We will update once we receive further news from the Facebook team.