Facebook Access Token not correct

While I have no issues with the metatags, because that's all something that it setup as a per content basis (does not apply to this module), and furthermore isn't really needed if you do the configuration in rules correctly, I also have experienced the login / logout issue.

Specifically, every couple of days I have to navigate to /admin/config/services/fbautopost and click on login. I assume this is most likely a Facebook issue, because it is not issuing a long lived access token. But I do believe it's something that is in fact a bug.

Per Facebook documentation: https://developers.facebook.com/docs/facebook-login/access-tokens

User access tokens come in two forms: short-lived tokens and long-lived tokens. Short-lived tokens usually have a lifetime of about an hour or two, while long-lived tokens usually have a lifetime of about 60 days. You should not depend on these lifetimes remaining the same - the lifetime may change without warning or expire early.

and

Access tokens generated via web login are short-lived tokens, but you can upgrade them to long-lived tokens. Converting short-lived tokens to long-lived tokens is covered later in this document under Expiration and Extending Tokens.

see: https://developers.facebook.com/docs/facebook-login/access-tokens#extending for extending tokens.