Deletion flag set in cube but not deleting?

Hi ,

The data is being loaded from an ODS to Cube.It is FULL update.and the data being loaded through the process chain.

There is check mark for the data deletion in the infopackage to delete the data coming from same infosource.With this logic the data was used to delete upto last night.But from today morning the data from the cube is not being deleted thought there is setting for the deletion of the data.We have to manual delete the data.Can any one help me out what might be the problem.

Thanks,