Getting error rendering same node in different view mode
I found the solution but do not know the actual cause.  Apparently I have to clone the current node to avoid conflicts:

$node = clone menu_get_object();
$node_view = node_view($node, $view_mode = 'card_view', $langcode = NULL);
echo drupal_render($node_view);


If anyone has any detail feel free to edit or add a comment.