Effective May 1st 2019, all newly published Open Graph stories will render as a plain link share in newsfeed. This means that Open Graph actions will not appear when posting.
On August 1, 2018 the
publish_actions permission was removed from Facebook Login (see New Facebook Platform Product Changes and Policy Updates). As a result of this change, apps are unable to publish custom Open Graph Stories. If you would like to implement sharing from your app or website, you may use the Facebook sharing dialogs instead. For more information see the platform-specific documentation: