Thank you so much. This fixed our issue. I'll make sure to link your answer in all existing threads, as there are a few of them. More info: In one of our apps, in application(_:didFinishLaunchingWithOptions:), based on what flags in UserDefaults are set, we either present the main dashboard OR do a complete cleanup (UserDefaults + Keychain) and present the login screen. In our case, Data Protection Entitlement was indeed set to NSFileProtectionComplete years ago. This, combined with Prewarming caused the issue in our case.

Edit: I've replied below to preserve formatting cc @mycool @ios-mediafly

We've tried using isProtectedDataAvailable. Sadly no luck.

Is your Data Entitlement Protection level set to NSFileProtectionComplete?

Any update on this @Pixalab?

Would you mind sharing the solution @Pixalab?