Facebook Login with Android - Only Works After App Install

I’ve impelemented the Facebook SDK and trying to run Facebook login on Android.
I’m running the beta Facebook SDK (7.02) and Unity 5.01.
It works well after the first time I install my app, but if I open it again and send the user to login on Facebook, it returns and FB.isLogged is false.

My code is:

First I call - FB.LogInWithReadPermissions("", afterLogin);

Then in afterLogin:

 if (FB.IsLoggedIn) {
            Application.LoadLevel("fbScene");
 } else {
    facebookButton.SetActive(false);
}

Any idea why it works well only in the first time its called?

I was able to reproduce your issue @yuvalk when passing an empty string to LogInWithReadPermissions. Try adding the list of permissions you are requesting instead of an empty string. It should return as expected with FB.IsLoggedIn as true.

eg, try:

FB.LogInWithReadPermissions("public_profile", afterLogin);