Entity Reference Image not rendered I have a content type with an Entity Reference field. The field references multiple images.

Using Display Suite, I can set the display format to "entity id" and when I view the content, I get a list of IDs as expected. But when I change it to "Rendered Entity", I'd expect the rendered images, but nothing is actually rendered. This is not a CSS-issue, the rendered field has no actual HTML in it. Any ideas?
You need to check the "manage display" section of the entity you're rendering and make sure the images are set as visible items in the selected "entity view mode". By default it takes "default".