swift – Silent push notifications not engaged on some iOS units

I ship APNs notifications to my units with the CloudKit dashboard. I check with two units;

System with Silent Push Working Efficiently:
iOS model 16.5.1 (c), Mannequin iPhone Xs

Silent Push Failed System:
iOS model 15.3.1, Mannequin iPhone Xr

Regular alert notifications work efficiently on each units. However I am unable to see any log in my mission though silent push is shipped efficiently on one machine.

What I’ve Checked:

• content-available is ready to 1.

• My app is just not in kill state, it’s in foreground or pending within the background.

• After I ship easy notifications, I can see logs in my swift mission and notifications on bodily units with none downside.

• No, my certificates has not expired and if there was an issue with it, I might not have the ability to see the conventional notifications.

• My cellphone is just not in energy saving mode and the “Background App Refresh” choice is turned on within the app’s settings.

• Each units in charging state.

• App capabilities: Background Modes is enabled with Distant Notifications, Background Fetch, Background Processing.

CloudKit Dashboard After Sending Silent Push:

My AppDelegate Class In Swift Challenge:

import SwiftUI
import UIKit
import UserNotifications

class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

    func software(_ software: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        UNUserNotificationCenter.present().requestAuthorization(choices: [.alert, .sound, .badge]) { granted, error in
            if granted {
                DispatchQueue.major.async {
                    UIApplication.shared.registerForRemoteNotifications()
                }
            }
        }
        return true
    }

    func software(_ software: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Knowledge) {
        let tokenParts = deviceToken.map { information in String(format: "%02.2hhx", information) }
        let token = tokenParts.joined()
        print("System Token: (token)")
    }

    func software(_ software: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
        print("Didn't register: (error)")
    }
    
    func software(_ software: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
        logInfo("Obtained Push Notification: (userInfo)")

        if let aps = userInfo["aps"] as? [String: AnyObject], aps["content-available"] as? Int == 1 {
            logInfo("It is a silent push notification")
            //DO SOME WORK
            completionHandler(.newData)
        }

        completionHandler(.newData)
    }
}