Images aren’t responsive

Hi there:

I’m having a problem with images under portfolio pages created with Gutenberg. Images are bigger than screen in mobile, they aren’t responsive. Trying to change alignment and size doesn’t work.

All other post under my blog have responsive images with no problems, but images under portfolio have the related issue.

I think it’s due the latest plugin update, because before images were responsive.

Any help?

Thanks in advance.

The page I need help with: [log in to see the link]