When the page first loads, it will show timesheets due for the current week. Because pay periods are two weeks long, every other week will generally be empty of members. The system is designed this way for times when there are different pay periods defined.
The filters at the top of the page, such as Pay Period Ending, determines what is shown. The date will look for the closest ending date. If you pick a Wednesday, it will show data for the pay period ending that next Saturday.
Other Options
There are two other pre-built reports available to Grantees who have selected the Banking module that are accessible from the Other Options link that looks like a gear.