Missing value of measure (calculated member )

Question

I've got a data warehouse which is underlying database of OLAP cube. When I run query like that:

SELECT  dimS.Attribute2,SUM(fact.LastValue)
FROM FactTable fact
JOIN DimS dimS ON fact.DimSKey = DimS.DimSKey
GROUP BY DimSKey.Attribute2 

I can see that all existing Attribute2 at dimS table have corresponding rows at fact table.

On the other hand I've got a calculated measure:

CREATE MEMBER CURRENTCUBE.[MEASURES].[MyMeasure]
AS ([Measures].[FactTable - LastValue]
, [DimS].[S Hierarchy].[All].[Hierarchy SomeName]
, [DimS].[Category].[All]
, [DimS].[Question].CurrentMember
, [CimC].[Status].&[Active]
),DISPLAY_FOLDER='Folder',VISIBLE = 1;

and when running below MDX:

SELECT
{ [Measures].[MyMeasure] } ON COLUMNS, 
{ ([Survey].[Attribute2].ALLMEMBERS ) }  ON ROWS 
FROM [MyCube]

I can see that 2 of Attribute2 have no values (null) assigned to them.

What can cause issue like that (DimS and cube has been just processed fully)?

Answer 1

Found the rootcause.

the reference in MDX definition of calculated measure to [DimS].[S Hierarchy].[All].[Hierarchy SomeName] is another calculated measure where actually we have hardcoded values within dimension hierarchy. And for [Attribute2] this condition is not met.