I have been using secure notes to save various private information in Ketchain. With the upgrade to Sequoia 15.1 these are now lost. They are not present on iCloud. Is it possible to retrieve these through time machine?
Secure notes lost with upgrade to Sequoia 15.1
I think this is a known issue. Here's Apple's recommended fix:
If your iCloud notes aren't appearing on your iPhone, iPad, or Apple Vision Pro, follow these steps.
- Open the Settings app and tap your name.
- Tap iCloud, then tap Notes.
- Make sure Sync this [device] is on, then check the Notes app.
- If you still don't see your notes, restart your iPhone, iPad, or Apple Vision Pro. After restarting, check your settings again.
After these steps, your iCloud notes should appear and start syncing again on devices signed in to the same Apple Account. When syncing completes, content previously synced to iCloud should appear.
Separately, please note that these are the Developer Forums, where developers of apps for Apple's platforms ask each other for hints and tips on coding.
Your question was more of a product support one, so you should ask such things over at the Apple Support Forums in future. Thanks.