I am trying to calculate a dimension percentage for WFRole on a child cube named MbMRouteHistoryInitiatorObj joined to a parent cube named MbmQaSObj by using a calculated member dimension within MbmQaSObj. 

If I use the calculated member dimension value expression of [WFRole].[H1].[WFRole].CurrentMember/ [WFRole].[All WFRole].%ALL in the child cube MbMRouteHistoryInitiatorObj, the percentages work correctly.

I am not able to calculate the same percentage using the value expression [MbmRouteHistoryInitiatorObj].[WFRole].[H1].[WFRole].CurrentMember/ [MbmRouteHistoryInitiatorObj].[WFRole].