When I am in a Bible, I enter a book/chapter/verse reference. A list of possible destinations appears.
Pressing Enter, pressing the Down Arrow, then Enter, or clicking a list entry has no effect. The same is true if I only enter a book.
The exception is that if I enter a book and chapter, the navigation works.
I've been using Logos since version 3. This problem has been happening for some time, but I remember that navigation used to work some time ago.