Issue - Time based partition cube

[cognosun]

We have a Monthly - Time based - Partiotined cube. ( with 3 months data ).

It is successfully getting built on UNIX but it's ending by giving an error.

When we ran the latest version of the model we got 3 months data as expected , but warning message displayed as below. ( indicating latest or January timestamp)

"(TR1900) The wrong ID stamp was detected  on the cube path...20110101-20110231.mdc. This often happens when the model isn't saved after creating a PowerCube."

Do anyone has idea about this error....On Windows it's running fine.