subscriberAddWithCustomFields / Name is not updated / BUG!?

Greetings everybody!

I am pushing updates for some of the subscribers in my list with subscriberAddWithCustomFields:

$result = $cm->subscriberAddWithCustomFields($email, $fullname, array('Vorname' => $firstname, 'Nachname' => $lastname, 'Salutation' => $salut_full, 'Anrede' => $salutation), $list_id, true);

There is a problem — all the fields are updated and confirmation mail fired as a result,
but Name field ($fullname) is not updated.

Any ideas?

Everything works fine when updating through CM generated form, but DOES NOT when pushing it via API.

Join 200,000 companies around the world that use Campaign Monitor to run email marketing campaigns that deliver results for their business.

Get started for free