When AdomdDataProvider (RadPivotGrid) has a multi-level user hierarchy (for example Calendar: Year > Week) as the first row group description, followed by two or more further row hierarchies (for example Customer and Code), the aggregate value of each top-level group (the year rows) is not the group total. It is the value of the last member of the second hierarchy within that group (the last customer in the year). The grand total is correct.