Same issue, same signature - Team ID 8U9TDRFRQL, bundle ID org.bldsf.community (App Store Connect app 6804963217), Sign in with Apple capability enabled on the App ID 2026-08-25. Native sheet renders, Face ID authenticates, then "Sign Up Not Completed"; zero requests reach our backend (our /auth/apple endpoint logs nothing, and an unrelated empty POST to it still answers its normal 401, so the route is up and reachable). akd on device, 2026-08-25 20:45:57 -0700, TestFlight build 1.0.0 (6), iPhone 14 Pro on iOS 26.6: akd Client has default access level in SiwA entitlement akd Fetching developer team for client with ID: akd Encountered error while fetching developer team: Error Domain=AKSQLError Code=-6003 akd No applications were found with the provided Client ID: Note the entitlement is read correctly on-device immediately before the team lookup fails. Verified on our side: com.apple.developer.applesignin = [Default] is present both in the code signature of the submitted binary (codesign -d --entitlements) and in the embedded provisioning profile; the identifier is configured as "Enable as a primary App ID", not grouped under another primary and not a wildcard; the bundle contains no app extensions that could be missing the entitlement; the bundle ID matches the aud we validate. This App ID is new - the capability was enabled the day before the failure - which matches the pattern others have reported here. Requesting the same server-side team registration fix that resolved GW7XA5CX69 and FRL3DTJQ62. Happy to supply a sysdiagnose or a GSA ptxid if that helps locate the server logs. Thank you.