It would appear that soundtrack release date (on this site) is based on when the draft is started, not when it is published. For exactly that reason, I just uploaded the first closing song from “So I’m A Spider, So What?” because that is my favourite from the show so far, and it shows that the publishing date is two years ago. However, while uploading the first opening, I had created a completely different draft, and the site uses the creation date and time from that draft, leading me to notice that bug. It’s a small, funny, and barely noticeable bug, but it should be easy to fix.