orderBy not sorting results

First, you folks are amazing.  Thank you for the tremendous effort you have put into CI4.
I am testing CI4 on a LIMS that I wrote way back for CI2.  I am trying to get sorted results from one of the tables.  I think I am doing it correctly but it is just as likely there is something here I am not understanding.  I have a table with an auto incremented ID and a Cell_Name column.  I am simply trying to do a select all and retrieve the data sorted on the cell name column.  

   $builder = $this->db->table('cell_lines');
   $builder->select('*')
       ->orderBy('Cell_Line', 'asc');

   echo $builder->getCompiledSelect(false);
   $query = $builder->get();
   $temp_result = array();

   foreach ( $query->getResult('array') as $row )
  {
$temp_result[] = array(
'ID'            => $row['CellID'],
'Cell_Name'     => $row['Cell_Name'],
'idCell_Type'   => $row['idCell_Type'],
'idGenotype'    => $row['idGenotype'],
'idBasel_Media' => $row['idBasel_Media'],
);
  }

   return $temp_result;

The generated sql is
                         SELECT * FROM `cell_lines` ORDER BY `Cell_Line` ASC
however I think the order by part is being dropped.

Any suggestions?

Sorry but I'm unable to reproduce your problem, for my all works fine:

Order by DESC:

Model.php

PHP Code:

public function ordered () {
    $query = $this->builder()
        ->select('*')
        ->orderBy('title', 'desc');
    echo $query->getCompiledSelect(false);

    return $query->get()->getResult();
} 


Order by ASC
Model.php

PHP Code:

public function ordered () {
    $query = $this->builder()
        ->select('*')
        ->orderBy('title', 'asc');
    echo $query->getCompiledSelect(false);

    return $query->get()->getResult();
}