Posts Page not showing the latest posts

Hello, I have configured the theme to have a static page as homepage and another page that I have called "Blog" to show the latest posts. I have nine posts published now in the web, and I can access all of them on the internet by using their permanent links. The problem is that the Blog page only shows the first seven posts, the last two are not shown. I have tried by changing the reading setting and introducing very high numbers (100) in both the "maximum number of posts in the webpage" and "maximum number of posts to show in the feed", but there is no change in the Blog page. Any advice or help with this will be highly welcomed. Thanks! Marta