Mdx queries work different on 2008R2 and 2012

Question

Hi all,
we have migrated our SSAS database from 2008R2 to 2012 recently. And I found strange thing. The mdx query below (generated by Cognos) worked quite fine on 2008R2
WITH
  MEMBER [Territory].[Territories].[XQE_MDF_CM0] AS IIF(COUNT(INTERSECT(DESCENDANTS([Product].[Products].CURRENTMEMBER, [Product].[Products].[Product]), XQE_NS0) AS [XQE_SA0] , IncludeEmpty) > 0, AGGREGATE([XQE_SA0], ([Territory].[Territories].DEFAULTMEMBER)),
NULL)
  SET XQE_NS0 AS FILTER([Product].[Products].[Product].MEMBERS, [Product].[Products].CURRENTMEMBER.PROPERTIES("MEMBER_KEY") = "713077" OR [Product].[Products].CURRENTMEMBER.PROPERTIES("MEMBER_KEY") = "857127" OR
[Product].[Products].CURRENTMEMBER.PROPERTIES("MEMBER_KEY") = "857128" OR [Product].[Products].CURRENTMEMBER.PROPERTIES("MEMBER_KEY") = "713080" OR [Product].[Products].CURRENTMEMBER.PROPERTIES("MEMBER_KEY")
= "717113" OR [Product].[Products].CURRENTMEMBER.PROPERTIES("MEMBER_KEY") = "856597" OR [Product].[Products].CURRENTMEMBER.PROPERTIES("MEMBER_KEY") = "857129" OR [Product].[Products].CURRENTMEMBER.PROPERTIES("MEMBER_KEY")
= "713083")
SELECT
  CROSSJOIN({[Date].[Time].[Month].&[201409]}, CROSSJOIN(HIERARCHIZE(GENERATE(XQE_NS0, ANCESTORS([Product].[Products].CURRENTMEMBER, [Product].[Products].[Brand]))), {[Measures].[QTD Sales Revenue]})) DIMENSION PROPERTIES PARENT_UNIQUE_NAME,  PARENT_LEVEL
ON AXIS(0)
FROM [Nemesis]
WHERE ([Territory].[Territories].[XQE_MDF_CM0]) CELL PROPERTIES VALUE,  CELL_ORDINAL,  LANGUAGE,  FORMAT_STRING
But on 2012 version there was an interesting thing
Result from (2008R2)
 2014/09 2014/09
GALVUS GALVUSMET
QTD Sales Revenue QTD Sales Revenue
2346360.3062295 5550927.34167495
Result from (2012)
 2014/09 2014/09
GALVUS GALVUSMET
QTD Sales Revenue QTD Sales Revenue
5550927.34167495 5550927.34167495
both results have been duplicated. Finding out a reason it looks like the where Clause which should filter products across first calc member works wrong. So when comment out where clause outcome looks right (I put all products from both brands by the way).
But clients have to choose products to filter.
I am just wondering if anyone encountered a similar issue, or 
even if somebody have the solution.
Many thanks,
Denis.
Denis

Answer 1

In other words filter by set in WHERE clause is not working via calc member and aggregate function.
Any ideas guys?
Denis