Not enough featured images are displayed on a page in two languages.

Hello.

I use the WP Latest Posts plugin on one page in two languages.

The plugin works with a single problem in the featured images in the blog in Spanish language.
https://ugarte-zestoa.com/blog/

But in the blog in Basque it has stopped showing me the featured image in the last five posts.
https://ugarte-zestoa.com/eu/bloga/

In the Basque language it started well because only one featured image was missing, and it didn't seem to be anything very important. But, when the last five featured images stop being displayed, the incidence is already beginning to be very worrying.

The detail that the plugin also works on the Home page is striking, but it does not fail there in either of the two languages.