Hi,
In our app we are using DeviceCheck (App Attest) in a production environment iOS. The service works correctly for most users, but a user reported failure in a flow that use device check service. This failure is not intermittently, it is constant. We are unable to reproduce this failure and we are believing that this failure occurred by new version ios 26.3 because for others users using early versions the service is normally.
Environment
- iOS 26.3
- Real device
- App Attest capability enabled
- Correct App ID, Team ID and App Attest entitlement
- Production environment
Characteristics:
- appears constantly
- affects only unique user
-Don't resolves after time or reinstall
- not reproducible on our test devices
- NSError contains no additional diagnostic info (Error Domain=com.apple.devicecheck.error Code=3 "(null)")
We saw about this error code 3 in this post 812308, but it's not our case because the ios version in this case is not iOS 17.0 or earlier.
Please, help us any guidance for solution. Thank you