Facebook access token invalid with message “session does not match current stored session”?

Question

I have recently started getting this error while posting to facebook newsfeed stream of an app user, I do have an offline access permission for the access tokens, and they w

Answer 1

The offline session token is changed whenever a user changes his password. If a previously working session suddenly stops (and you're getting that error) then the user's password was changed (probably by the user) and you will need to re-prompt them to grant you offline access and save the new session token you get.