I think there is no page break! I guess your paragraphs are styled Heading 1, Heading 2 and Heading 3 but your Heading 2 lines are not really headings but semantically rather a sequence of numbered points you would usually find in a list.
This is perfectly legitimate but you must understand the heading paradigm. Headings are short sentences which we want to be kept with the following “normal” text elaborating on the heading. As a consequence, Heading x styles come out of the box with property Keep with next paragraph enabled (in
Text Flow tab of paragraph style definition dialog). This has the effect of pushing the heading on next page in case it would have been widowed on the last page line.
In your case, you have a long sequence of Heading 1-3 paragraphs which are “glued” together by this attribute. The block is too large to fit in the remaining space of page 1 and is shifted to page 2. The block ends after 4. where you have seemingly standard Body Text paragraph followed by a bulleted list.
What you see on pages 1-2 is likely to occur again if you have Body Text paragraphs later in your Heading x sequence.
The solution is elementary: modify built-in paragraph styles Heading 2 and following to disable Keep with next paragraph. Leave it enabled on Heading 1 to keep the traditional behaviour.
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