Missing/not loading images in posts

Some images are missing/not loading on some of my recipe posts. I noticed this when publishing a post today, and it wasn’t like this yesterday. Before publishing my post, I noticed the images weren’t showing in the preview, so I re-uploaded them, and they’re fine now. But when I published the post, I noticed other images were like that, too. Some posts are affected, plus images in the “You May Also Like” area. I’ve left a link to one of the posts that’s affected.

https://marshasbakingaddiction.com/mint-chocolate-chip-layer-cake/