Pluto's Live Docs feature does not show docs of loaded packages

[donovaly]

As a beginner, I tried to learn Julia via Pluto. I see that in YouTube videos, Pluto tells you information about loaded packages but for me I don't get any information other than for commands that are in Main:

In the example above, you can see that I get info for the size() command but not for the Kernel class that is defined in
using ImageFiltering

But in YouTube videos, I see that when they type "Kernel." they get suggestions on how to complete the command, and also that they get info about the "Kernel" class. The guys in YouTube are in MacOS, while I am on Windows 10 and Julia 1.11.0 RC4.

Maybe this is a bug or under Windows I have to install something special?