can we add new cubes and ODS after creating the multiprovider?

Hi all,

i created a multiprovider on a cube and ODS. Now i needed one more charactersitic from other cube.then i did change multiprovider and then add that new cube and did the identification, and adjusted the query, when i ran the query it is showing chracteristic as # and not assigned. I even tried bringing in 0infoprovider object to see whether data is coming from third infoprovider, it is not showing up any data from third one. i tried logging out of bex and logging back in.....but still no use..............i am wondering now, once a multiprovider is created can new infoprovider be added to it ?

i am even able to see the new key figures and chracteristic in my query.but data is not getting populated...i also checked and found that the data is available in the infoproviders....

plz help me out..

points will be assigned for inputs