Hello, I’m trying to create an iOS TestFlight build for an Expo/EAS app on Windows. The project is configured with: Expo SDK 57 EAS CLI 24.1.0 iOS bundle ID: com.i3radleyy.flooriq Apple Developer Program: active individual membership Apple Team ID: R7GLN64JYP The Bundle ID is registered in Apple Developer The app record exists in App Store Connect I am the Account Holder The Expo configuration command succeeds and reports the correct bundle ID. EAS project initialisation also succeeds. However, when running the production build, Apple authentication fails after the Apple ID and password are accepted: Authentication with Apple Developer Portal failed! Failed to set up credentials. iTunes service key is empty Error: build command failed. I have also tried: EAS_NO_VCS=1 EXPO_NO_KEYCHAIN=1 Git is not being used, and the project is being built from the correct app directory. The Apple Developer account and App Store Connect pages are accessible in the browser, and the Bundle ID is registered. Is this a known EAS/Apple authentication issue on Windows? Is there a recommended way to provide the Apple signing credentials or use an App Store Connect API key so that EAS can create the iOS distribution certificate and provisioning profile? Thank you.