useSoftDeletes and insert

Hi !

I write this part of code in order to return time data (created_at field) to the client when he wants to insert a new message in the db :

PHP Code:

(...)
$insertId = $message_model->insert($data);
$message = $message_model->find($insertId);
$message = $message_model->normalize_dates($message);
(...) 


It's working fine.... except when I set "useSoftDeletes = true" into my "message_model" file. If I do that, find() method return "null" whereas $insertId seems to be correct.

Is that normal ?
Thanks !