insert_id() not returning

[eluser]Clooner[/eluser]
I fixed the problem myself with this workaround. Somehow CI has a bug with returning the last inserted id. Hope this helps someone else

Code:

function AddAdres($data)
{
  $this->db->insert("adres", $data);
  $query = $this->db->query('SELECT LAST_INSERT_ID()');
  $row = $query->row_array();
  return $row['LAST_INSERT_ID()'];
}