Example: https://litmus.com/checklist/emails/public/2dd678e

Windows 10 mail usually will not load some of my images. It is usally the first regular image it encounters that shows up just as an outline and red X. All the other images load just fine, even my background images. All images have display:block inlined, so it isn't that. Some of the images that do this are linked and some are not. Ideas?