This specific issue only affects sign-in attempts that happen immediately after install We've encountered an issue that affects sign-in attempts right after installing our app. Our onboarding flow typically requires creating a passkey, and we've noticed that sometimes users are unable to complete this step immediately after installation. In some cases, the issue resolves itself, but it can take up to 72 hours after the app is installed. This has led to a few App Store review rejections, as reviewers also encountered this error during onboarding. Unfortunately, the only current workaround is to retry the sign-in process.