Data in not consistent Before & post upgrade BI7.0

We have upgrade the quality box to BI 7.0 recently as part of the testing we found that data is not consistent.The quality box is a copy of the production box and thereafter the quality box was upgraded. The no of requsts in that specific cube which I say data is not consistent has the same number and same requests between QA & prod,but I found that in one of the data requests the data is different between QA & prod.

This data request should be the same bcoz it is just copied from the prod it has the same requestno/no of added records,but the data looks to be diffrent inside the request.

Pl let me know if anyone encountered the same problem during the upgrade and how to resolve this.

Thank you