Urgent: We are using Facebook login to transfer a player's Playfab account from an old version of our app to a new version. (This is the only way the app stores would let us switch publisher and continue to sign the apps in the store).
It was working well enough until today. The apps are live and a feature is claimed imminent so we are desperate.
The scenario is:
* player logs in with Facebook in the old app
* player follows a link to the new app
* player logs in with Facebook in the new app
1 we try to link the facebook token to this new record and get back that the facebook token is already in use.
2 we ask for the playfab account associated with that facebook token.
3 we get back the playfab account associated with the facebook token
4 we attach the new device id onto the same playfab account and the player continues with their old playfab account
As of today, with the game live in production, Playfab fails on step 3. the token is in use but we get back "null" for the account and cannot migrate the player!