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I have an add-in that works fine in SWX 2014.  I am updating it to SWX 2017 and now I can't seem to select anything into my selection boxes.  The selection box is added to the PMP and I can change focus between selection boxes.  However if I try to select anything the selection box is not populated, tried preselecting as well with no luck.  Any ideas?

Here is a typical way I'm adding selection boxes

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<p>pm_Reference_Bodies = ppage.AddControl2(Selection_BodiesID, controlType, caption, alignment, options, tip)<br>        If Not pm_Reference_Bodies Is Nothing Then<br>            Dim filter() As Integer = New Integer() {swSelectType_e.swSelSOLIDBODIES}<br>            With pm_Reference_Bodies<br>                .Style = swPropMgrPageSelectionBoxStyle_e.swPropMgrPageSelectionBoxStyle_HScroll + _<br>                         swPropMgrPageSelectionBoxStyle_e.swPropMgrPageSelectionBoxStyle_MultipleItemSelect<br>                .SingleEntityOnly = False<br>                .AllowMultipleSelectOfSameEntity = True<br>                .Height = 50<br>                .SetSelectionFilters(filter)<br>                .Mark = BoundBoxMark_e.ReferenceBodyMark<br>                .SetPictureLabelByName(System.IO.Path.Combine(installDir, "Body 18x18.bmp"), System.IO.Path.Combine(installDir, "BodyMask 18x18.bmp"))<br>            End With</p><p>        End If</p>