Offline documentation files for LibreOffice are missing

If I push the F1 key on libreoffice, it should open the offline help in a browser.
But it seems, that Libreoffice is using a wrong path, or a few files are missing in the libreoffice package.

At my system Libreoffice is using the url:
file:///usr/lib/libreoffice/help/index.html?Target=swriter/.uno%3AHelpIndex&Language=de&System=UNIX&Version=6.2

The language files are installed but I can’t find a index.html file in the path.

Can anybody confirm this error?

Thanks

Edit:
Yes, there are missing a few files for the help.
I’ve wrote a bugreport.

The issue has been reported, please continue here.