Hello, yes I am here. It appears the collapsible rows at the top of the page do work.
As for the ones below, I do not see anything in the code that would cause the dropdown content not to appear. It seems the content still needs to be added to each dropdown. To do this
Go to Themes> Customize> Navigate To The Section & Click Each Row> Add Descriptions To Collapsible Row> Save
Hope that helps!
@biznazz101