Dupliacte Member SIDS

Hi

We run a BW report in the Portal. After the data is displayed, we select Filters to refine our data search.

We get an error :

Invalid program status: Duplicate member created: 0CPR_PROJEC: 460B35DBE6FB4E04E1000000C0A8966A, Sids: 9161 & 36355

What does Duplicate Member mean ? I assume it is an issue with SIDS on a particular MultiProvider comprised of three cubes and two Info Objects, including 0CPR_PROJEC.

How do we get rid of Duplicate Members ?

Thanks