We're currently experiencing issues with Instagram Publishing, causing posts to fail when scheduling or posting directly to Instagram. (Error message "Facebook error: An unexpected error has occurred. Please retry your request later. (code 2, subcode null)")
We're impacted by a Facebook/Instagram API issue: https://developers.facebook.com/bugs/686963184990851/?legacy_version=true
We are continuing to monitor the issue, and will post additional updates as they become available.