Weird Parts layout problem

I have had a weird problem occur on one of my projects. All parts are rendering fine apart from Violin 1 and 2 - All the flows from 2-11 are showing up ALL on one page! I am not quite sure what has happened or how to re-set it. I am probably missing something really basic here, but any help gratefully received. Screenshot attached.

In Engrave mode, select the first Frame break signpost (use shift-alt-click to select only one object and click until the right signpost is selected) and untick the "Wait for next frame break property, in the bottom panel.
You could also use Layout options > Page setup > Flows New flow on new page option. If this is what you want in the end!

Excellent…that saved me a lot of time, thanks!