[BUG] iOS push notifications not received to physical device from Azure

[ghost]

Describe the bug
Originally posted on stackoverflow, was recommended by a Microsoft support engineer to post here:
https://stackoverflow.com/questions/64768446/ios-push-notification-not-received-to-physical-device-from-azure

I follow this Microsoft guide rigorously but push notifications don't come through to the physical device:
https://docs.microsoft.com/en-us/azure/notification-hubs/xamarin-notification-hubs-ios-push-notification-apns-get-started

Exception or Stack Trace
RegisteredForRemoteNotifications is called successfully, but ReceivedRemoteNotification is never called when I send a Test Send from Azure. No obvious errors or exceptions come through. However, inside the .iOS project, within the method RegisteredForRemoteNotifications, I have noticed that when I hover over my SBNotificationHub instance, under the class handle it gives an error:
"Unable to cast object of type 'Mono.Debugger.Soft.PointerValue' to type 'Mono.Debugger.Soft.PrimitiveValue'."
Not sure if this has anything to do with my problem.

To Reproduce
Steps to reproduce the behavior:
On a PC with visual studio 2019 (Connected to a Mac over local network) and connect an iPhone to the Mac via lightning cable. Make sure device is connected to WIFI/phone network, create a new Xamarin project for android and iOS. Use only the code from this Microsoft guide:

https://docs.microsoft.com/en-us/azure/notification-hubs/xamarin-notification-hubs-ios-push-notification-apns-get-started.

Send a Test Send from Azure.

Expected behavior
A push notifcation should come through to the physical iPhone,

Setup (please complete the following information):

• OS: Windows 10 PC, connected to a Mac over local network.
• IDE : Visual Studio 2019 v16.8.0
• Xamarin.Azure.NotificationHubs.iOS v3.1.0
• iPhone 6s v14.1 (Connected via lightning cable)

[ghost]

I forgot to add, the iPhone does pop up with a permission request for push notifications, which I accept.

[pavloss]

I'm experiencing the same behaviour with a different framework. Underlying class handle also gives:
Unable to cast object of type 'Mono.Debugger.Soft.PointerValue' to type 'Mono.Debugger.Soft.PrimitiveValue'.

[c0demak3r]

I'm experiencing the exact same as shown above, following exactly the same Microsoft docs article and verbatim code. The counterpart Xamarin.Android knowledge article and Azure Notification Hub Tests work perfectly.

[nativenolde]

Is there any news about this?

[matscr]

Any recent news?

[mpodwysocki]

@DOPAFIEND @matscr and others, we are updating the documentation to use the latest APIs that should be merged soon MicrosoftDocs/azure-docs#68800

We are aware of the bug in the legacy APIs due to threading issues and are advising people to use the new APIs

[shaytate]

Could someone assist me with this? I am still not receiving any notification message that hits DidReceivePushNotification. I see success messages in Azure when sending. I followed the latest documentation fully. I am using the following:

Windows 10 PC, connected to a Mac over local network.
Visual Studio 2019 v16.8.6
Xamarin.Azure.NotificationHubs.iOS v3.1.1
iphone 7 v14.4 (Connected via lightning cable)
Xcode 12.4