Preventing text reflow in LibreOffice book layout

Hi, I’m preparing the layout of a book in Hungarian in LibreOffice. After I typeset the text and make detailed adjustments, the text sometimes reflows when I reopen the file. What is the best way to prevent this from happening?

Could you share a document containing 2-3 pages which include the problem?

And don’t forget to mention OS name and exact LO version. We’ll see save format from the sample.

Hi there, here are the details:
Version: 25.8.1.1 (X86_64)
CPU threads: 4; OS: Windows 11 X86_64 (build 26100); UI render: Skia/Raster; VCL: win
Locale: hu-HU (hu_HU); UI: hu-HU

Thanks!

I’m attaching a few pages where the text were reflowed.

UGORJ AZ ISMERETLENBE új_A5_tördelhető_Libre_O_to_send.odt (47.4 KB)

What was the initial state? What changed on open? What did you do to fix the situation and did not persist on reopen?

All I can tell for the moment is your document is entirely direct formatted. This makes it very sensitive to inadvertent changes. In addition you have a line break Shift+Enter instead of a paragraph break Enter after “befejeződött.” and before “A Maharsi” in page 2.

Using styles results in a more stable document.