Different Page Headers

I’m using different page headers, which aren’t saving - they default to a single header (right page) when I open anew. I was using .rft and have saved now as .odt. I’ve changed page styles and heading styles.

I read old posts where this was a known issue, am I missing something?

Version: 24.8.2.1 (X86_64) / LibreOffice Community
Win 10

Can you post a small two page example that still shows the problem? Replace text with some random text.
Cheers, Al