Can you explain why I can no longer print a spreadsheet?

Long established Calc spreadsheet showing the members of a club. When I attempt to print it, or part of it, Print Preview shows the populated page, but when Print is selected it is shown as empty, and therefore (as selected) the print is suppressed. It worked last year!
Libre Office English Calc
Windows 7 Home Premium Version 6.1 build 7601 service pack 1 English

Are you sure that you have a defined print range?
To see defined print ranges, go to “View” → “Page Break” (second entry in the View-menu). There you can drag around page limits. Right-click and choose “Define Print Ranges” for more detailed control.