Space Syntax - Problem with Force Directed Drawing tool

Hello everyone, I am learning to use the tools of the plugin space syntax, I am having a problem when using the tool “Force Directed Drawing”, apparently for some reason it does not respond.
Anyone know why?

When activating the tool, the spaces (circles) do not adapt according to their connectivity. the location of the points and curves remains in the same position.

I share the tutorial I take as a guide

I run the plugin in rhino 6 and 7, the same thing happens.

SpaceSyntax Forum.gh (16.0 KB)