In my project, I manage multiple targets that utilize common functionalities, particularly for cloud communication. Approximately three weeks ago, I successfully released the Vitamin Book app from this project. Everything is functioning correctly; the app is available on TestFlight for Mac (iPad version) and the Apple Store.
After publishing the Vitamin Book app, I updated to macOS 15.1 and Xcode 16.1 before new work on the next version of another app, the Emotion app. And the issue started.