Flow heading appearing too early

I have a project with multiple flows. In the full score, when Page Layout settings for New Flows have “allow on existing page”, one of the flow headings is appearing in the wrong place - in the middle of a previous flow instead of at the start of one flow (and showing the title of the previous flow). This only affects the full score, and only when multiple flows are allowed on the same page. Can you think what I’m missing?

The obvious explanation is that there’s a page override preventing Dorico from automatically moving the flow heading. Look at the Pages panel in the top right corner of Engrave mode; if the affected page is overridden it’ll have a red corner. Right-click on it and Remove Page Overrides.

Ah, thanks so much, that’s the problem - now fixed. You’re a big help!