Are you referring to this post?
https://peakd.com/hive-170798/@cool08/the-magic-part-of-music
It went up 22 hours ago. This prompt post went up 14 hours ago. We are people, not computers. If the story comes on the same day as the prompt, there is a really good chance it will not be curated before post time.
Remember, we are just people. Even when the stories come in early there is always a chance they might be missed. Curation is a goal, not a guarantee. We try.