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[abrudz]

In https://mastering.dyalog.com/Mathematical-Functions.html#total-array-ordering clicking a sub-heading opens the previous one:

[rodrigogiraoserrao]

The issue is that the book contents shown and the TOC element highlighted are not in sync.
I seem to recall having searched for this in the jupyter-book issues and finding this is not MDAPL's fault, but "theirs" (i.e., a jupyter-book update would fix this).
Of course, now I cannot find said issue. Will look for it and try to see if updating jupyter-book fixes this.

[rodrigogiraoserrao]

Found the relevant jb issue: jupyter-book/jupyter-book#1827
Turns out it was actually "Sphinx's fault" but seems to have been fixed in Sphinx (executablebooks/sphinx-book-theme#545).
This will arrive to jb with Sphinx-Book-Theme v0.4.0.
I suggest we wait for that.