BPC 7.5 reports issue in 10NW

EVDRE reports from 7.5NW is upgraded to EPM10 and all is working well.However in the QA environment, in some of the reports there is some sudden issue.

For example values in A10 are send thru hidden cell with EVSND function in cell Z10. While refreshing or reopening the same report A10 is not refreshing with values, though Z10 is showing values from EVSND function.

Have someone noticed similar issue. How to rectify this issue in EPM10.

Appreciate inputs.