Linked measure group shows only "normal" measure, no calculated ones by script with scope

I have a measure group with sales. One measure [Measures].[sales] is a normal measure read from relational DB. [Measure].[sales last year] is calculated SCOPE(...); ([Measures].[sales last year])=(ParallelPeriod([Time].[Time].[Year],1,[Time].[Time].CurrentMember),[Measures].[sales]); END SCOPE; The measure group works as expected in its own cube. But there is a second cube that links this measure group and there [Measures].[sales] has values but [Measure].[sales last year] is always 0. I queried sales per year.Is it normal, that a calculated measure (using scope) does not work when linked?By the way, what is the correct name for this type of measure, is no ordinary calculated measure.