After upgrading to macOS 26, I cannot install or update my app from either the App Store or TestFlight. Other apps update and install normally. Steps: Before upgrading, the app was installed via TestFlight and worked fine. After upgrading, I tried to update the app from the App Store: The update stalls at ~90% and never completes. Other apps update successfully. I launched the already-installed TestFlight version — it worked. After deleting the app, I tried reinstalling from TestFlight and got the error: “The app couldn’t be downloaded. Try again.” I tried rebooting, logging out/in of my Apple ID, and submitting a new TestFlight build — same issue. Environment: Originally built with Xcode 14 Also tried a new build with Xcode 16 App is compatible with macOS 26. Distribution outside the App Store (Developer ID signed and notarized build) runs fine