Paris X Pinkney — same signature, Team Z92482C52W, Client ID app.coachflat.ios (App ID P44VBP922Y). Filed as FB24626747. On device (iPhone18,1, iOS 26.6.1, TestFlight build): the sheet presents, Face ID succeeds, "Sign Up Not Completed" appears, and the delegate receives ASAuthorizationError.canceled (1001) with empty userInfo. No credential is issued. 100% reproduction across three builds. Verified before filing: com.apple.developer.applesignin = ["Default"] in the signed binary and the embedded App Store profile; APPLE_ID_AUTH with PRIMARY_APP_CONSENT via the App Store Connect API; nonce per documentation. Sign in with Google in the same build succeeds on the same device. One detail that may help triage: this is the first and only App ID in our team to enable Sign in with Apple (enabled 2026-08-31) — consistent with the "fetching developer team" failure in the akd logs others have posted. Requesting the same server-side re-provisioning applied to GW7XA5CX69 and FRL3DTJQ62. AuthKit-profile sysdiagnose to follow on the FB. Happy to verify immediately.