However, I can’t find anywhere in the templates attached to this project where that should happen (This is a “first page template” of a part set and my flow templates are always completely blank as I don’t use flows). AChildByTheSea.dorico (2.0 MB)
In this case the project dedication doesn’t appear in the PDF (good!). But in another project it did actually print on paper (in light grey) and I’ve had to remove it individually.
You’ve got a page override (as shown by the red triangles) for the first pages of part 2, 3 and 4 which include the Project dedication. Therefor changes to the First Page Template does not show for these parts.