Images not showing

Apparently the images are loading correctly, because I can select them on Chrome’s inspector. But they are not showing.

I read some topics here and already tried some things like:

Instagram Feed > Customize > Misc > enable Load initial posts with AJAX > click Save Changes

and

Feed > Customize > ensure Favor Local Images is enabled (it should be), then click Reset Resized Images as well as Clear Local Cache

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