Same signature here with a new team / App ID. Team ID: VDQV9ZVMAD (Individual, enrolled 2026-07-15) Bundle ID: com.cratecore.app (App ID created 2026-08-31, Sign in with Apple enabled as primary App ID) Build: TestFlight 1.0.79 (79), also reproduced on 78 Feedback: FB24687497 (sysdiagnose attached) Sheet appears, Face ID succeeds, then "Sign Up Not Completed"; the app receives AKAuthenticationError -7003. akd log at every attempt: AKSQLError -6003 -> "No applications were found with the provided Client ID" -> "M2 missing (bad password)" -> AppleIDAuthSupport Code=2 -> -7018 -> -7003. Reproduced on iOS 15.4.1 and iOS 26.x with several Apple IDs. The same Apple IDs complete a first-time Sign in with Apple in other third-party apps on the same devices. Client-side configuration verified: capability enabled as primary, entitlement present in the App Store profile and in the signed binary, all agreements accepted. Would appreciate the same server-side registration fix that resolved the other teams in this thread.