I noiced that my headings that are supposed to be the same size (ie., Heading 1) appear differently inside a section macro... possibly in combination with tip/warn/note macros within the same section.
I created a new page basically like this:
Heading 1
tip
Heading 1
note
Heading 1
warn
Heading 1
All looked ok.. then I created a section at the top and copied and pasted the headings and other macros above into the section... after pasting, The 2-4th headings were smaller than the first. Then, when I put a new heading1 into the page, it was bigger than even the 1st one. Tried replicating on another page, but doesn't seem to follow a pattern.