iOS9 Notes Folders show populated on iPad but not on other devices
I've upgraded my iPad Air, iPhone 6, iMac, and MacBook to iOS9 and El Capitan, respectively.
On my iPad, I created a bunch of folders in Notes, and moved my existing notes into those folders. (In "Notes" list, I click "Edit", then select a bunch of notes, then click "Move To...".)
On the iPad, those notes appear in the folders that I moved them to.
On my iPhone, iMac, and MacBook, the folders have appeared, but they are empty. My existing notes do exist on those devices, but they are not categorized into any folder. If I edit one of the notes on any device -- say, add a line break at the end of the note -- then the edit pushes to the note on the other devices, but the folder-ization of the note does not change on any device.
Glimmers of success:
- If I create a brand new note within one of those folders on any device, it does appear in the correct folder on all devices.
- If I edit a note on my iPad (where it's already showing in the correct folder), then the other devices get the edit but don't recognize the folder-ization, as I mention above. But, if I then disable Note syncing, for example, on my MacBook in my iCloud System Preferences pane, and then re-enable it, then the notes that I've edited on my iPad do end up in the correct folder on my MacBook.
What on earth could be going on here?? Any ideas how to fix things without manually editing every note??