List post under page doesn't work

Hi, I’m using a child theme made from CC 1.17.3 versión.
My child theme has just the css and header.php file because I’m loading some custom scripts and I use the searchbox on menu.

The “List post under page” on pages doesn’t work.
It do on homepage, but I wan’t to show some category posts inside some pages and seems to not work.

The site is: https://barriletes.org.ar
The pages where I enabled “List posts under page” are these:
https://www.barriletes.org.ar/revista/archivo-de-notas/
https://www.barriletes.org.ar/radio/noticias/
https://www.barriletes.org.ar/area-de-expresion/novedades/

I tried with both, child theme and original CC theme.
thanks