$modx->user->isAuthenticated() false after running login processor

$response = $modx->runProcessor('security/login', array(
    'username' => $_REQUEST['username'],
    'password' => $_REQUEST['password'],
    'login_context' => 'web',
    'add_contexts' => 'web',
    'rememberme' => true,
        ));

if (!empty($response) && !$response->isError()) {
    $output['finished'] = true;
    $output['success'] = true;
    if ($modx->user->isAuthenticated() == true ){
        $output['loggedin'] = true;
        $output['userName'] = $modx->getLoginUserName();
    }
} else {
    if ($response->isError()) {
        $output['error'] = $response->getMessage();
    } else {
        $output['error'] = 'Unkown Error, please try again.';
    }
}

$_POST['username'] = $user;
$_POST['password'] = $pass; 
$_POST['service'] = 'login';
$_REQUEST['service'] = 'login';
$scriptProperties['loginResourceId'] = 499;

$modx->runSnippet('Login', $scriptProperties);

$_POST['service'] = 'login';
$_REQUEST['service'] = 'login';

$response = $modx->runProcessor('security/login', array(
    'username' => $_REQUEST['username'],
    'password' => $_REQUEST['password'],
    'login_context' => 'web',
    'add_contexts' => 'web',
    'rememberme' => true,
        ));

$response = $modx->runProcessor('security/login', array(
    'username' => $_REQUEST['username'],
    'password' => $_REQUEST['password'],
    'login_context' => 'web',
    'add_contexts' => 'web',
    'rememberme' => true,
    'service' => 'login'
        ));