Indeed I had missed the message as it was posted in between older messages. I think it does that when you post something from an instance of the webpage that was not refreshed with the lastest posts.
I used ScreenToGif and made a Demo. As you can see, with the first paste it keeps the notes as they are formated the same regarding relative start time. But the second Note release is lost as it was not at the exact same place as in the original material. With the second paste, the notes are lost, except the first ( edit : and third ) one.