Internal error: An unexpected error occurred (file 'pffilestorefilegroup.cpp', line 1496

HI,

I' ve 2 dimensions in my cube with just 2 values each (Dim1 Show in thousands with "Original" and "in Thousands", Dim2 Invert Signs with "Original" and "Inverted") Both Dimensions are connected Regular via Named Calculations. We are also using Account intelligence with Custom Rollup formulas and unary operators

There are two Scopes:

Scope([Show in Thousands].[Show in Thousands].&[2]);

    This=[Show in Thousands].[Show in Thousands].&[1] /1000;

End Scope;

Scope([Invert Signs].[Invert Signs].&[2]);

    This=[Invert Signs].[Invert Signs].&[1] *(-1);

End Scope;

Now in my mdx query, when I have [Invert Signs].[Invert Signs].&[1] and [Show in Thousands].[Show in Thousands].&[1] in my where clause I got this error message:

With the Combinations 1,2 ; 2,1 ; 2,2 it works as expected.