EVEXP functionality in BPC MS 7.5

Hi Fellow colleagues,

I am using EVEXP function in my input schedule.

Have created a property called CAPEX in Account dimension and have given values Y to specific accounts.

In the Function arguments, Member is a parent, EVBAS in Include flag and in the filter CAPEX='Y'.

The fomula gves true and doesnt expand to the basmembers.

Kindly advise.

Regards,

Shrini