Hi,
Thank you very much for the proper details, it helped me a lot.
The issue was, that you had a category filter active, and the ‘Blog’ category was selected by default. Because there are only 2 posts within the ‘Blog’ category, the plugin displayed only those results.
I have made the following change, so that by default none of the categories is selected within the filter at first: https://i.imgur.com/ewPcHYj.png
Now, it will display the latest results as configured.