iOS 6 Twitter Type diasappearing

- (IBAction)TwitterButtonClicked: (UIButton *)sender {
    // Is Twitter accessible and is there at least one account
    // setup on the device
    if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeTwitter]) {

        //create store and try to get access
        ACAccountStore *account = [[ACAccountStore alloc] init];
        ACAccountType *accountType = [account accountTypeWithAccountTypeIdentifier:
                                      ACAccountTypeIdentifierTwitter];

        [account requestAccessToAccountsWithType:accountType options:nil
                                      completion:^(BOOL granted, NSError *error)
         {

             //If user grants the app access
             if (granted == YES)
             {

                 //Multiple Twitter accounts present?
                 NSArray *arrayOfAccounts = [account
                                             accountsWithAccountType:accountType];

                 for (ACAccount *acc in arrayOfAccounts) {
                     [acc accountType].identifier;
                     //Otherwise the identifier get lost - god knows why -__-
                 }



                 dispatch_async(dispatch_get_main_queue(), ^{
                     if ([arrayOfAccounts count] > 1)
                     {
                         self.alertDelegate = [AccountHandler
                                               initWithAccounts: arrayOfAccounts];
                         UIAlertView *message =
                         [[UIAlertView alloc] initWithTitle:@"Multiple Accounts Detected!"
                                                    message:@"Please pick the account you used \
                          to sign up for ComicBin."
                                                   delegate:[self alertDelegate]
                                          cancelButtonTitle:@"Cancel"
                                          otherButtonTitles:nil];

                         for (ACAccount *acc in arrayOfAccounts) {
                             [message addButtonWithTitle: [acc accountDescription]];
                         }

                         [message show];

                     } else {
                         ACAccount *acc = [arrayOfAccounts lastObject];
                         //Just one account
                         [AccountHandler checkAccountOf:acc];
                     }
                 });



             } else {
                 //Access denied
                 UIAlertView *message = [[UIAlertView alloc] initWithTitle:@"Access denied"
                                                                   message:@"Could not obtain right to use linked \
                                         Twitter account. Please allow this app access to your Twitter account(s)"
                                                                  delegate:nil
                                                         cancelButtonTitle:@"OK"
                                                         otherButtonTitles:nil];
                 [message show];
             }

         }];
    } else {
        UIAlertView *message = [[UIAlertView alloc] initWithTitle:@"No linked Twitter accounts"
                                                          message:@"It looks like you have not linked \
                                                    any Twitter accounts to your iPhone"
                                                         delegate:nil
                                                cancelButtonTitle:@"OK"
                                                otherButtonTitles:nil];
        [message show];

    }

}