Since I updated to version 1.4.1 the hidden fields are not working. When i try to edit or add, GC is asking for the ID_program field
$crud->required_fields('id_program', 'question');
$crud->field_type('id_program', 'hidden', $id_program);
$crud->set_relation('id_program','program','{name}',array('id_program' => $id_program));
Thank you