Print does not look like Print Preview

I’m using LibreOffice on a Mac under El Capitan X.11.6. For quite a while I’ve been having problems with printing spreadsheets: what prints isn’t what LO’s Print Preview shows, and I can’t figure out how to fix the problem. Here are two screen captures, one of LO’s Print Preview window, showing how I want the spreadsheet to print, and the other of the Print window, accessed from the Print icon on the Print Preview page. Just to make sure the Print window wasn’t misleading me, I printed the page on paper, and it was identical to the image in the window,

I tried to upload the two images of the Print Preview and Print windows, but kept getting a cryptic message that “>3 points required to upload files”. How does one get >3 points?

What is it that rotates the spreadsheet into that unnatural orientation? I tried changing the page orientation, but all that does is rotate the paper to landscape mode, leaving the spreadsheet orientation relative to the paper unchanged.

Any ideas? Thanks.

Please update to 5.4.4