Roles by Regions Hierarchy for the CUBE

HI,

I want to restrict access to a cube that has a Regions-->Country Dimensional Hierarchy. I am trying to use Roles for this purpose and am using the Cell Data Enable Read Permissions option. So for a "JapanRole" I am using the following MDX, but I am not able to retrieve any data for the measues (UNITS).

[LicenseeRegion].[Regions].CurrentMember IS [LicenseeRegion].[Regions].[Region].&[Japan]

 The value that I am getting back when logged in with this role is "#N/A". Please suggest how can filter accurately based on region dimensions.

Thanks
Rituraj

RRS