Main post image different sizes after update

After the last update, the main image post of any blog post have different sizes on desktop like this:

https://www.nlarenas.com/2019/12/fuerza-aerea-ecuatoriana-graduo-primeras-mujeres-pilotos-combate/

https://www.nlarenas.com/2021/09/aeroregional-incrementa-vuelos-quito-loja/

The last link is the normal image size it was before.

Any idea?