GetChildrenFromMember API Function

Hey BPC'ers

I'm working with the EPM VBA functions and I can't seem to get children associated with a specific dimension member using the provided functionality. I'm trying to get the following code to work:

***CODE***

Sub NonWorkingCode()

    Dim EPMObj As Object

    Set EPMObj = CreateObject("FPMXLClient.EPMAddInAutomation")

    'Dim EPMObj As New FPMXLClient.EPMAddInAutomation

    Dim conn As String

    Dim Children() As String

    conn = EPMObj.GetActiveConnection(ActiveSheet)

    Children = EPMObj.GetChildrenFromMember("DEPT878", "PARENTH1", 1, 10, conn, True)

End Sub

***/CODE***

The function only ever returns an empty string array. A similar VBA function works just fine to return the entire hierarchy:

***Other Code***

Sub WorkingCode()

    Dim EPMObj As Object

    Set EPMObj = CreateObject("FPMXLClient.EPMAddInAutomation")

    'Dim EPMObj As New FPMXLClient.EPMAddInAutomation

    Dim conn As String

    Dim Hier() As String

    conn = EPMObj.GetActiveConnection(ActiveSheet)

    Hier = EPMObj.GetHierarchyMembers(conn, "PARENTH1", "DPC")

End Sub

***/CODE***

My hierarchy has thousands of members, and I would rather get just the subset I need from the selected parent member. DEPT878 is a member in my "DPC" dimension that has a hierarchy labeled "PARENTH1".  Does anyone have any suggestions or have had success with the GetChildrenFromMember function?

Thanks!,

Ryan