Thank you for your post.
Your screen shot shows 89 records found, so there should be 89 records displayed. Can you tell me more about your Layout? Specifically, is there a Body part? If so, make sure all fields are within the Body. If the top of the fields are touching the Header part, then they become part of the Header, and would therefore only print the first record.
If this is a Sub-Summary report, make sure you have the proper field sorted. Otherwise, nothing will appear.
Any other information you can provide may be helpful in narrowing down the possible causes.
One of our Support Technicians noticed in your screen shot that you are in Form View; not List View. This will show only one record at a time.
In the Status Toolbar, to the right of your layout name "Attendance Report", there is "View As" followed by three icons. You currently have the Form View icon highlighted. If you click the middle icon, then you will be in List View. The right icon will show Table View.