Xcode – Swift NotificationObserver not working with a modally presented ViewController

I’m currently trying to open a modally presented ViewController when pushing a button and send some Data to this modally ViewController by a Notification. The problem is that the NotificationObserver seems not to be working on the modally presented ViewController.

This is how I push the Notification:

let scores = ["Bob": 5, "Alice": 3, "Arthur": 42]
        
NotificationCenter.default.post(Notification(name: .didReceiveData, object: self, userInfo: scores))

This is how I add the Observer

NotificationCenter.default.addObserver(self, selector: #selector(self.onDidReceiveData(_:)), name: .didReceiveData, object: nil)

@objc func onDidReceiveData(_ notification:Notification) {
    if let data = notification.userInfo as? [String: Int]
        {
            for (name, score) in data
            {
                print("(name) scored (score) points!")
            }
        }
}

I’ve already tried adding the NotificationObserver both in viewDidLoad and viewWillAppear, but both options did not work for me.

Does anybody have a solution for this kind of problem?

(I’m using Xcode 12.1, and deploying it on IOS 14.1)