Unary operator and local Cube (sql server 2008)

hi, 

We process local and server cube (c# with amo sql server 2008), at present I implement unary and custom rollup 

with server cube its ok 

but with local cube , I have a problem

a caption of attribute are replaced by unary value or custom rollup value

The documentation specifies that this functions is supported by the local cubes

Somebody can it specify if the unary operator works with the local cubes

best regards