Thumbnails problem

Hello,
After i optimized all images on my website i noticed there is a problem with the larger images. Practically the images are not resized anymore in posts where the featured image should be wide. Here’s an example: http://trucchiesoluzioni.net/guida-clash-royale/

I already upgraded and here it is the Debug info sections (http://pastebin.com/9kvpx0ge). The status says that it’s everything fine.

Is there anyway to fix this?

https://wordpress.org/plugins/ewww-image-optimizer/