Headings not saved correctly. Difficult to fix.

Question

I opened a saved draft. When the file was saved, all headings were styled Futura LT Medium. When I opened the file, they had all changed to Lucida Grande in the document, though the styles themselves are still Futura LT Medium.
Further, I tried to correct it three different ways.
Select all uses of <style>, Revert to Defined Style
Failed because: Revert to Defined Style is greyed out when all uses are selected but works on individual headings.
Select all uses of <style>, use font drop-down to specify correct font
Failed because: font drop-down has no reflect (after selecting a font, it still displays empty and no fonts change).
Select one heading at a time, Revert to Defined Style
This works, but it's immensely time consuming. This is a 13 page report with many headings.
Eventually, after fixing a couple headings and wanting to be sure that I can save and reopen it without it reverting these changes, I used "Save a Version" and then quit Pages entirely. I reopened the document. The headings all appear to have spontaneously fixed themselves, but when selected the style shows a red triangle down arrow and can be Reverted even though this doesn't appear to change the heading in any way. So somehow Pages has corrected the headings but still thinks they deviate from the style.
What on earth is going on? Is this some kind of Pages/OS X Lion bug? Any advice or work-arounds?
Edit: Corrected second to last paragraph because it was not accurate.

Answer 1

Sounds to me like you have altered the template but haven't captured the changes to the master pages.
When you are inserting new sections they are coming from the original master pages with the old style.e
Learn how the styles and layouts in Pages work:
http://www.freeforum101.com/iworktipsntrick/viewtopic.php?t=182&mforum=iworktips ntrick
Peter