For some reason, when printing Calc spreadsheets only the word SECRET is printed in capital letters on a cover page. This started a few months back and I have no idea what caused it or how to correct it. The only way to print a spreadsheet is to save it as a PDF then print the PDF. This does not happen with printouts from Writer.
Edited to add (4/20/20):
To answer the questions;
Happened with any sheet - LibreOffice v126.96.36.199 (and a previous version) - Mint Linux 19.3 using only LibreOffice .deb files/updates from repository
Based on the suggested remedy;
Performed a Safe Start as instructed then reset the profile to defaults. A new Calc sheet now will print as expected. Many Thanks for the help, it is very much appreciated.
Yes, perhaps I wasn’t clear in my previous edit but resetting the user profile (in safe mode) had solved the issue. Once again thank you.