Same symptom here, for Team 64565S7RQD / bundle com.dinizquiz.quizbiblico (App Store app 6772226808, DINIZ QUIZ Biblico). The native Sign in with Apple sheet renders, the user authenticates and taps Continue, then the sheet shows "Sign Up Not Completed" and the delegate receives ASAuthorizationError Code=1001 with empty userInfo. No credential is delivered and our backend never receives a request (confirmed with server logs). Reproduced on a physical iPhone (iOS 18.7) three times today (2026-09-20, 17:42Z / 17:58Z / 18:07Z), and by App Review on iPad Air 11-inch (M3), iPadOS 26.6, which rejected 1.0.1 twice under Guideline 2.1(a) (submissions 875b2735 on Aug 28 and 1e8b3abd on Sep 19). Checked and ruled out: com.apple.developer.applesignin = [Default] is in the signed binary and in the embedded App Store provisioning profile; the App ID (PKYNWAGZUL) has APPLE_ID_AUTH enabled as PRIMARY_APP_CONSENT (verified via the App Store Connect API); the request uses requestedScopes fullName+email, a raw nonce, a state and a presentationContextProvider; the same flow also fails with the community Capacitor plugin used in the live 1.0 build. On the iOS 26.5 Simulator with no Apple Account the failure is the expected AKAuthenticationError -7026 -> 1000, so the device failure is different and server-side. Filed FB24866093 (Authentication Services Framework, iOS). Could the Sign in with Apple server-side registration for Team 64565S7RQD / com.dinizquiz.quizbiblico be checked, as was done for the teams above? Thank you.