PDF bookmarks not expanding for 2 chapters in my 9-chapter book. What should I look for?

Question

In my unstructured book, page, table and figure numbering is all correct. All 89 figures number correctly. I can't get the PDF bookmarks for chapters 2 and 8 correct. Each of the chapters have a bookmark, but no expanded bookmarks. They should have several. My TOC may have a clue as to what is wrong: only the links for chapter 1 work. All of the other chapters in the TOC show a link is present, but nothing happens with a click.
I've used the same formatting throughout the book; e.g., paragraph tags, master pages, etc. I only have 2 master pages – first and right. First is used for the first page of each chapter. When I save to PDF these 2 chapters separately, the chapter title ends up at the end of the bookmark list instead of the top. I know something is off, but I don't know what to look for. Tags that I don't see? Very frustrating.
I'm relatively new to FM and don't understand the tags in the reference pages. I haven't intentionally created any formatting tags in the reference pages. I only use them for special characters and repeated graphics.
Any guidance would be greatly appreciated. What I want for Christmas – a decent user manual for FM! I'd take a class, but I'm retiring in April.

Answer 1

The title bookmarks for the chapters won't be out of order in the book, but you indicated that they are (at the end of the sub-levels) for chapters 2 and 8 when done separately. If the text frames holding these titles were created after the main flow text frames, that would explain why things are things are misbehaving.
To specify the expanded bookmark level, you need to explicitly type in the level value that you want [ignore the drop down list and "Default" setting].
From the Book file, regenerate the TOC before you test the links. If you get a "File not found" after this, in the TOC, then something is really messed up i nhe TOC file. I would rename it and create a new one for the book. You can then import your formatting from the older, renamed version.