WP Smush is not compressing images

WP Smush is not compressing images. Please see my website at *******rostories.com and run a GTMetrix report. You can see that the biggest issue is that images are not compressing. I have run WP Smush several times now.

Seems to be related to original images, but the option "Smush my original full-size images" is enabled in Media -> WP Smush