I was just scrolling through the sub and saw that four or so of your posts in a row have this issue for me, including this one. They’re all from “1 month ago”. I can’t see them logged in on voyager, nor if I open the post in browser and view anonymously.

I know you can edit posts and change the image - if you care to fix, you might try reuploading the images that way. No big deal, though; just letting you know.