In PCLOS Kde using Libreoffice 6.2.0.3, when I am typing in a spreadsheet and make an error typing and try to use the backspace key to delete the typing error, the character is not deleted. Any Ideas why?
This happened to me tonight and Googling led me to your question. My problem was that words would be cleared with backspace but numbers wouldn’t. I fixed it by going to Sheets → Clear Cells … Backspace and clicking Numbers on. I don’t know how/why it wasn’t on, since it was fine yesterday.