There are a number of reports that will hide certain lines from view when active:
Hide all Shots – hides all ‘Shot’ lines from view when active.
Hide Inline Notes – hides all notes that have been typed directly into the document as the Note line type. This will not apply to notes added to a line by using the embedded margin notes found to the left of any line.
To close an active report, click the ‘x’ to the right of the report name under the 'Modes' tab at the right of the screen.