Hello, Thank you for your response. I’ve submitted a detailed bug report including the full description, reproduction steps, expected and actual results, and the Xcode/macOS build information, along with a sample Xcode project demonstrating the issue. Feedback ID: FB20788084 (Game Center sign-in alert appears on macOS 26 even without Game Center capability or entitlement) I’d greatly appreciate it if the team could review this report at your earliest convenience, as this behavior affects our current macOS app build and testing workflow. Please let me know if any additional information or logs would be helpful for further investigation. Best regards, JE

Hello, thank you for your response. After trying one more bundle synchronization, the macOS device still does not load any Game Center data (including Achievements) from the Manage Game Progress debugging tool. My app is a non-live game, and the bundle I tested on iOS is also an identifier that hasn’t gone live yet. On iOS, the same configuration works as expected, but on macOS, no data is shown. I even created a fresh project with the same Bundle Identifier, built both iOS and macOS versions, and confirmed that Game Center data loaded correctly on iOS but not on macOS. Since the issue only occurs on macOS, should I proceed with submitting a bug report through Feedback Assistant? Thank you.