Authenticating user with iOS FacebookSDK logs user out - ios

Question

I'm using the FB iOS SDK to get the user's credentials and access token and save them. With the previous version I managed to properly do this, but my solution broke with the upgrade to iOS 6, so I downloaded the new version from Github, and compiled and added the framework to my project according to the instructions.
I properly authenticate my user with FB, but when the browser (the modal view controller presented for auth) is dismissed my user reverts to the initial view of my app instead of the view that the process was launched from.
Right now I have code in my app delegate and my SocialNetworksViewController to do this.
In AppDelegate:
-(BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
return [FBSession.activeSession handleOpenURL:url];
}
- (void)sessionStateChanged:(FBSession *)session
presentingViewController:(UIViewController *)presentingViewController
state:(FBSessionState) state
error:(NSError *)error
{
switch (state) {
case FBSessionStateOpen: {
[presentingViewController dismissModalViewControllerAnimated:YES];
}
break;
case FBSessionStateClosed:
case FBSessionStateClosedLoginFailed:
// Once the user has logged in, we want them to
// be looking at the root view.
[FBSession.activeSession closeAndClearTokenInformation];
break;
default:
break;
}
[[NSNotificationCenter defaultCenter] postNotificationName:FBSessionStateChangedNotification
object:session];
if (error) {
UIAlertView *alertView = [[UIAlertView alloc]
initWithTitle:#"Error"
message:error.localizedDescription
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alertView show];
}
}
- (void)openSessionFromViewController:(UIViewController *)viewController
{
NSArray *permissions = [NSArray arrayWithObjects:#"publish_stream", #"email", #"user_birthday", nil];
[FBSession openActiveSessionWithPermissions:permissions
allowLoginUI:YES
completionHandler:
^(FBSession *session,
FBSessionState state, NSError *error) {
[self sessionStateChanged:session presentingViewController:viewController state:state error:error];
}];
}
In SocialNetworksViewController:
- (IBAction)connectToFacebook:(UIButton *)sender {
if (!self.facebookConnected) {
AppDelegate <UIApplicationDelegate> *appDelegate = (AppDelegate *)[UIApplication sharedApplication].delegate;
[appDelegate openSessionFromViewController:self];
}
}
- (void)sessionStateChanged:(NSNotification*)notification {
NSLog(#"%#", FBSession.activeSession.accessToken);
}
- (void)facebookLoginFailed {
}
This is in viewDidLoad as well:
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(sessionStateChanged:)
name:FBSessionStateChangedNotification
object:nil];
In the sessionStateChanged method, the NSLog outputs and then I get send to my initial view.