token returned is null after addAccount()

Question

I've been trying to implement an app which saves user accounts (id, password and token) with the Android AccountManager. Been using this as my reference for implementing the functionality.

I am able to show my AuthenticationActivity and create accounts (which show up correctly in the Settings > Accounts after I create them). After I add a new account I try to immediately login the user with the token received which I save with setAuthToken(). However this never works and I see that the authToken is always null. I then have to run the app for a second time and login again after which it works.

The code where I add a new account (from my signup activity) is,

private void addNewAccount(final AccountManager am, final String accountType, String authTokenType) {
    Log.d(TAG, "addNewAccount(): " + accountType + ", " + authTokenType);
    am.addAccount(accountType, authTokenType, null, null, this, new AccountManagerCallback<Bundle>() {
        @Override
        public void run(AccountManagerFuture<Bundle> future) {
            try {
                Bundle bundle = future.getResult();
                final String authToken = bundle.getString(AccountManager.KEY_AUTHTOKEN);
                Log.d(TAG, "addNewAccount() -> bundle = " + bundle + ", authToken = " + authToken);
                if (!TextUtils.isEmpty(authToken)) {
                    startLoggedInActivity(authToken);
                } else {
                    Log.d(TAG, "token is null"); // <- always get here
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }, null);
}

And the code where I finish the login (after I receive the token and add the new user) is,

private void finishLogin(Intent intent) {
    Log.d(TAG, "finishLogin(): " + intent.getExtras());

    if (intent.hasExtra(KEY_ERROR_MESSAGE)) {
        Toast.makeText(getBaseContext(), intent.getStringExtra(KEY_ERROR_MESSAGE), Toast.LENGTH_SHORT).show();
        setResult(RESULT_CANCELED, intent);
    } else {
        String accountName = intent.getStringExtra(AccountManager.KEY_ACCOUNT_NAME);
        String accountPassword = intent.getStringExtra(PARAM_USER_PASS);
        final Account account = new Account(accountName, intent.getStringExtra(AccountManager.KEY_ACCOUNT_TYPE));

        if (getIntent().getBooleanExtra(ARG_IS_ADDING_NEW_ACCOUNT, false)) {
            String authtoken = intent.getStringExtra(AccountManager.KEY_AUTHTOKEN);

            // Creating the account on the device and setting the auth token we got
            // (Not setting the auth token will cause another call to the server to authenticate the user)
            mAccountManager.addAccountExplicitly(account, accountPassword, null);
            Log.d(TAG, "finishLogin() -> addAccountExplicitly: " + account + ", " + accountPassword);
            mAccountManager.setAuthToken(account, mAuthTokenType, authtoken);
            Log.d(TAG, "finishLogin() -> setAuthToken: " + authtoken);
        } else {
            mAccountManager.setPassword(account, accountPassword);
            Log.d(TAG, "finishLogin() -> setPassword: " + account + ", " + accountPassword);
        }

        setAccountAuthenticatorResult(intent.getExtras());
        setResult(RESULT_OK, intent);
    }
    finish();
}

Does anyone know what the problem could be (been struggling with this for quite some time now :( )?