No Detail In Go To Menu on devices
I have a technical book which requires access to some 150 items. I have TOC.xhtml and nav.xhtml which both show the required detail. For example:
Rec. Menu
Page 1
Brightness
Contrast
etc. (These are from the top H1, H2, H3 H3 respectively in mark up.
On the devices, I finish up with a table of contents at the front of the book which shows all levels as expected. But the Go To section of the book shows
Rec. Menu
Page 1
Page 2
Page 3
omitting the H3 levels.
I note that not all devices have the useful NCX view button but when they do the full table of contents appears, as at the front of the book. The Table of Contents button next to NCX appears non-functional and greyed out on devices on which it appears. Am I misunderstanding something?
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