Symptoms: When you run a project with nested subreports, some of the controls do not display.
Cause: Controls could be overlapping or the section following a header with the UnderlayNext property set to True might have a non-transparent BackColor.
Solution: Temporarily use the BackColor properties of sections or controls to more easily spot their locations at run time, then rearrange them as needed. Take care to leave the BackColor property Transparent for any section following a header with the UnderlayNext property set to True.