How to show multiple local notifications - ios

Question

Background:
Im writing an application where a bot sends you messages. These messages can be received as local notification.
The Problem:
When the bot sends multiple notifications within a short span of time (1 second between each message), the notification center will only show one message. I will hear the notification sound every time I expect to, But i will still only see the first message.
Relevant code:
func postUserNotification(content: String, delay: TimeInterval, withDictionary dictionary: [String:String] = [:]) {
let notificationContent = UNMutableNotificationContent()
notificationContent.body = content
notificationContent.userInfo = dictionary
notificationContent.categoryIdentifier = "message"
let dateAfterDelay = Date(timeIntervalSinceNow: delay)
let dateComponents = Calendar.current.dateComponents([.year,.month,.day,.hour,.minute,.second], from: dateAfterDelay)
let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponents, repeats: false)
let identifier = "identifier" + "\(NotificationManager.incrementor)"
let localNotification = UNNotificationRequest(identifier: identifier, content: notificationContent, trigger: trigger)
UNUserNotificationCenter.current().add(localNotification){ (error : Error?) in
if let theError = error {
print("the error is \(theError.localizedDescription)")
}
}
}

Answer 1

Nothing wrong with your code :
Like you wrote in your question, this is mentioned in the Apple Docs:
If you are sending multiple notifications to the same device or
computer within a short period of time, the push service will send only
the last one.
https://developer.apple.com/library/content/technotes/tn2265/_index.html#//apple_ref/doc/uid/DTS40010376-CH1-TNTAG23