Not sure if this is a bug or something we are doing incorrectly, but one of our authors reports that Parts marked to be invisible in the TOC are still showing up in her dropdown TOC on the web. They are not appearing in the TOC on the book’s home page, but show up as “empty” Parts in the dropdown.
They currently contain Drafts of in-progress Chapters. I tried switching some of the Chapters to Private status instead of Draft to see if that had any impact, but it did not.
We are pretty sure this was not happening before, so is perhaps a side effect of some other development? If it’s not a bug, any suggestions on how to fix would be welcome.