Sites not looking like demo

Hi there,

I tried now for several hours but seem not to be able to find the issue. How can I choose the layout of a site in Newspaper X when clicking on a menu item. I basically want the site to look like the demo at (clicking on News > Events).
However, on my website it only shows three posts/articles (I have currently 6 in that category) no matter what I do. See screenshot attached


P.S. I started the site from scratch with the demo files from the theme etc.

Hello there,

I hope you are doing well today.

Please check those posts to ensure that they have the same category and tags assigned to them.

Best Regards,