Somehow and accidentally I was able to move the new Recently Deleted folder in Notes as a subfolder of some other arbitrary folder while on 10.11. This then got synced to my iOS 9 devices. I have no recollection of the circumstances that allowed me to do this, but now I can not move it back so it persistently appears as a subfolder. It is not possible to delete that folder by itself - I assume it is special in some way.
To begin with, if I was to delete the parent folder, then the Recently Deleted folder does disappear, but the next time I deleted a note the folder was recreated (or becomes visable again), now showing as a child folder without a parent! (Visually, it is indented in the list.)
However, in the Notes in the latest 10.11 beta I can no longer see my Recently Deleted folder at all. On iOS 9 it is showing as a child folder.
So my question really is how to make my Recently Deleted folder come back and work as expected across all devices.
Has anyone else experienced this and/or can offer any advice?