IOS device not receive notification

[MonikaGulve]

message = new MulticastMessage()
{
    Tokens = registrationTokens,
    Notification = new FirebaseAdmin.Messaging.Notification()
    {
        Body = body,
        Title = title

    },
    Data = new Dictionary<string, string>()

{ {"title", title}, {"body", body}, }.Concat(dix).ToDictionary(x => x.Key, x => x.Value), Apns = new ApnsConfig() { Aps = new Aps() { Sound = "default", } } };

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[MonikaGulve]

For android getting notifications but for ios not getting any notification even though SendMulticastAsync shows success for ios

[chong-shao]

This seems to be a message delivery issue. For further investigations please file a ticket to Firebase support https://firebase.google.com/support/troubleshooter/contact where you can provide more information for us to debug the issue. Thanks!