Help contents incomplete

Having solved the [missing World View" issue in a rather unexpected way, on to more issues…

Next in line: my Help contents are highly incomplete. I am e.g. missing the Pixel Extraction entry referred to here or the Correlative Plot entry mentioned here. My Help contents look like this:

I wonder whether there is a similarly surprising and easy solution (but I have all originally installed plugins/tools (re-)activated already).

Even more strange issues on your system. Have you already tried to reinstall SNAP?