Report Design: Report detail area (gray box) ghosting (duplicating itself) in report

What caused, or how can I prevent, the gray box (report detail area) in the report form from duplicating itself (ghosting), usually in the bottom right side of the report when the report is run. First thought is there is another gray box, even just a tiny speck of a box in the report form down where the data is showing again, but there isn't. See example below / attached.

Thank you, Jim Schuett, 480-277-7550, [email protected]