Hyperlinks to text anchors throughout a book don't work in PDF output

[valeriav4730268]

Hi. I have an everlasting problem with hyperlinks in my books that I export to PDF.

This is a user manual with several versions in other languages, so I have a separate book for each of these versions.

There are many contextual links between files in a book, for example - references to an export chapter or another tool, etc. While checking them via Hyperlinks > Edit hyperlink... menu, I see the correct link to the correct anchor in the correct file of the correct book. Even "going to a link's destination" works perfectly for each of them. But after exporting the book as a PDF file, almost all of the links do not work (I open the output in Acrobat Pro DC). I return back to the book, double-check all 100+ pages, performing the actions described above, and again—some of the links do not work in an output. 

Maybe I do not know some trick? Or is it a bug?

Please, advice.

P.S. I run the latest versions of InDesign and Acrobat Pro DC. And there are no Preflight errors at all.

[Derek Cross]

You are exporting the document as an Interactive PDF?

[valeriav4730268]

Hi Derek!

Yes sure! Forgot to mention that.