It looks like the poster hasn't inserted a thumbnail or full image so the attachment is displayed at the bottom of the post. It isn't showing a tiny thumbnail for this though. Search the ACP for "Attachment Thumbnail Dimensions" to see what is set for this.
It looks to me like there was no thumbnail generated for the image. This would indicate either the image failed to thumbnail (due to issues while thumbnailing; I've seen this with Imagick at times, usually a config issue) or that the image dimensions were too large to process/thumbnail.