Watch Facebok Pages(public pages) on my own pages got errors

Features
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1

I can use the Facebook Watch Posts (public page) to watch posts from someone else’s public pages. But only got “Error: Invalid OAuth 2.0 Access Token (190, OAuthException)” if watchs the public pages created by me using the same connection. Is this the limitation of this module or I’m doing something incorectly?

Thanks.