"Error found retrieving data",issue while generating evdre report on parent members

Hi All,

When i am trying to create an EVDRE report,I am encountering an error "Error found retrieving data".

I realized that i get this error only if I try to pull actuals at Hierarchy level 1 (i.e on parent level members for Cost center).

For the Base members its working fine. E.g If I try to pull with SELF,BAS( For Cost Center)  It throws me error. But if pull with only BAS it is works fine.

Is it because some issues with Aggregation or Roll up of hierarchy?

This error is same across all the Systems ( DEV,QA, and Prod) .

We are on BPC 7.5 NW.

I have already processed Cost center dimension once but still the issue exists.

Thanks.