Severe issue with iOS 17.7.7

[arlo]

I received multiple help tickets today about people losing all their app data after updating to iOS 17.7.7. Apparently this is an iOS issue that affects all apps:

https://discussions.apple.com/thread/256059442

https://discussions.apple.com/thread/256059474

https://www.reddit.com/r/TheSilphRoad/comments/1kl69e3/ios_1777_constant_login_problems/

If you are using iOS 17, I recommend skipping the 17.7.7 update. If you have automatic software updates turned on, you can turn that off in the iOS Settings app at General > Software Update > Automatic Updates.

If you already updated to iOS 17.7.7 and are seeing this problem, you can downgrade to iOS 17.7.6, but you should only do that if you have a device backup from 17.7.6, or manual backups from the Export Database function for each of your databases.

If you are seeing this problem and do not have backups, you can wait until Apple releases another iOS update that fixes this problem, and then your data might reappear.

You should NOT delete and reinstall the app, because that will not fix the problem but will prevent your data from reappearing after the problem is fixed.

[arlo]

Update: Apple has stopped distributing iOS 17.7.7, so it seems they are aware of the issue.