For anyone else trying to use this new key: I discovered this key is only available with iOS 15.4 and above so it wasn't a caching issue. NSUserNotificationsUsageDescription was recently introduced in one of the Xcode 13 versions, but Apple currently has no documentation on it.. My team was able to confirm its limited use and we released it to production.

Still an issue for us in latest Xcode 13 version (13.4.1). Hopefully this gets fixed in Xcode 14...

Same issue for me using Xcode 14.0.1 😫 (intel mac, 5+ configurations, and cocoapods in use)

Just want to add that our app is also encountering this issue suddenly on devices iOS 16.1 and up 😐