ODI - HFM Metadata Update Issue

We're on ODI 11.1.1.9 and HFM 11.1.2.3.700.

I'm running a package to update a custom Dimension in HFM but it is failing as it is not picking up the parentmember when building the XML.  I've checked an output file and I can see that the Member is being created without the parent and can also see that the correct hierarchy is being built for the parent for example  -

	<DIMENSION Name="Classification">
		<MEMBERS>
			<MEMBER><LABEL>Memberr_name</LABEL>

<AT Name="IsCalculated">N</AT>

<AT Name="SwitchSignForFlow">N</AT>

<AT Name="SwitchTypeForFlow">N</AT>

<AT Name="UserDefined1"></AT>

<AT Name="UserDefined2"></AT>

<AT Name="UserDefined3"></AT>