Strange tracks appear out of nowhere

(Everything under the superior drummer midi track)

This is an interesting one. This happened to me ONCE before many months ago but I thought nothing of it. This morning it happened again. I came out of Drum Editor and noticed they were there and I don’t think they were there when I opened the project this morning. Anyone have any clue? They don’t appear to be connected to anything and deleting them has no consequence. But I just find it interesting that these tracks are appearing out of literally nowhere.