New API bug since 9028?
It appears using the API since 9028 to update an asset is requiring the use of the "productName" field which it shouldnt. Even when trying to use the productName field to get around this problem it always fails.
Example:
fails with:
productName is empty/invalid
<operation>
<script/>
<operationstatus>
Failure
</operationstatus>
<message>
productName is empty/invalid
</message>
</operation>