The administrator is trying to run a timesheet detail report to get the the billable, non billable and the total hours that the users have entered against a particular project. However when the timesheet detail report is run, the details are displayed for another project and not the intended project.

More Information:
The administrator had selected the project in the sub filter available inside the Client filter and then the report was run. This ideally means that if a project is selected in the sub filter inside the Client filter, the data displayed would be based out on all the clients associated to that particular project. So, if the project has multiple clients then the data will be displayed for all the clients.In this situation, the intended project needs to be selected in the Project filter and that will display the data associated to the intended project.