Using the search in locally installed help delivers the list of suggested topics as usual - but clicking one of these topics leads to an error 404.
The local search is downloaded once or twice per months. If at all.
It has a very low priority for me. I guess these failing links are an unexpected side effect of making the real help Google-friendlier...
I've looked into this. Required just a bit of JavaScript trickery.
Re-download the offline help.
Clear the cache of your browser (Shift+Ctrl+F5).
Should work then.
Tested in Edge, FF and Chrome.
Works now - Thank you!
(Remark: The helpfile zip contains the parent folder "dist"; I think it should be zipped one level deeper. No problem.)
I zipped it manually this time, not via the usual build process.