I have created the same List component as per Adobe help guide. When I clicked any of the child page link , url get changed but the content of the page not get refresh. Still showing the existing page content.
Can you verify the :children property in the Network section in en.model.json (Or whichever locale/language). As in SPA the data is rendered from the root JSON. I suspect this JSON might be missing. The en page should use the Root page template and it's childpages should use other content page template to have en.model.json loaded in all the pages.
If above things are available try checking the routing part from React side.