Column structure disappears after saving the reports

Hi ,

   We have created the new report in the EPM 10 version, the columns axis of the report consists of time members and local members (for calculations),

   When we run the report it is working fine and structure is there, but after saving the report and run the report , the colum strucuture is not there in the report,

          Please provide the suggestion on this issue.

Regards,

Venkata.