Hey I have found a solution.
It requires a core edit of the plugin though, so I hope you might be able to implement it in the core?
$sort = array();
foreach ($value as $key => $row) {
$sort[$key] = $row['order_no'];
}
array_multisort($sort, SORT_ASC, $value);
On line 144 of api.php
On the CPT template I can then use:
$meta = get_fields( get_the_ID() );
foreach($meta as $key=>$value) {
// Stuff here
}
