The post is duplicated, one with an image, one without an image.

Something happened to me in another community, where I made a post, but I made a mistake and deleted it immediately after posting. This caused the post to be deleted from my instance, but it was still visible from other instances. I’m guessing it’s a bug with Lemmy. Since the post was deleted from my instance, I couldn’t find it to delete it again.

The same thing probably happened with this post, because if you go to lemmy.nz this post doesn’t exist there - try copying the permalink and going to it.