With this configuration:
$this->grocery_crud->set_table('contactos');
$this->grocery_crud->set_relation('id_motivo', 'motivos', 'motivo');
$this->grocery_crud->set_relation('id_usuario', 'usuarios', '{nombre} {apellido}');
$this->grocery_crud->change_field_type('leido', 'true_false');
$this->grocery_crud->change_field_type('fecha', 'datetime');
$this->grocery_crud->change_field_type('fecha_leido', 'datetime');
$this->grocery_crud->edit_fields('fecha','id_motivo', 'nombre', 'email', 'mensaje', 'leido');
$this->grocery_crud->callback_edit_field('leido', array($this,'_leidoo_formato'));
$this->grocery_crud->callback_update(array($this,'_editar_registro'));
I add the image (


With another click on the place where it should be the dropdown, you can edit the field, but do not select an option from the database (Table Motivos). As this edition is disabled? (

Unable to re-display the html select after these actions.
Using these versions:
Codeigniter 2.0
Grocery Crud 1.3.3
Browser: Mozilla Firefox 17.0.1.
What can be the problem? Thanks for your time and help.