No notifications on Windows 11

[psl2806]

I'm not getting notifications on my Windows 11 client.

In homeassistant I noticed that the client is showing up under MQTT but not under the HASS.agent.

On the client log I can see this:

2023-06-08 13:00:30.493 +02:00 [INF] [HASS_API] Home Assistant version: 2023.6.0
2023-06-08 13:00:30.523 +02:00 [FTL] [PROGRAM] FirstChanceException: Cannot create a stable subkey under a volatile parent key.
System.IO.IOException: Cannot create a stable subkey under a volatile parent key.
at Microsoft.Win32.RegistryKey.Win32Error(Int32 errorCode, String str)
at Microsoft.Win32.RegistryKey.CreateSubKeyInternalCore(String subkey, RegistryKeyPermissionCheck permissionCheck, RegistryOptions registryOptions)
at Microsoft.Win32.RegistryKey.CreateSubKey(String subkey, RegistryKeyPermissionCheck permissionCheck, RegistryOptions registryOptions)
at Microsoft.Win32.RegistryKey.CreateSubKey(String subkey)
at Microsoft.Toolkit.Uwp.Notifications.ToastNotificationManagerCompat.Initialize()
at Microsoft.Toolkit.Uwp.Notifications.ToastNotificationManagerCompat..cctor()
2023-06-08 13:00:30.524 +02:00 [FTL] [NOTIFIER] Error while initializing: Failed initializing notifications
System.InvalidOperationException: Failed initializing notifications
---> System.IO.IOException: Cannot create a stable subkey under a volatile parent key.
at Microsoft.Win32.RegistryKey.Win32Error(Int32 errorCode, String str)
at Microsoft.Win32.RegistryKey.CreateSubKeyInternalCore(String subkey, RegistryKeyPermissionCheck permissionCheck, RegistryOptions registryOptions)
at Microsoft.Win32.RegistryKey.CreateSubKey(String subkey, RegistryKeyPermissionCheck permissionCheck, RegistryOptions registryOptions)
at Microsoft.Win32.RegistryKey.CreateSubKey(String subkey)
at Microsoft.Toolkit.Uwp.Notifications.ToastNotificationManagerCompat.Initialize()
at Microsoft.Toolkit.Uwp.Notifications.ToastNotificationManagerCompat..cctor()
--- End of inner exception stack trace ---
at Microsoft.Toolkit.Uwp.Notifications.ToastNotificationManagerCompat.CreateToastNotifier()
at HASS.Agent.Managers.NotificationManager.Initialize()

[Ar2rZ]

same here, no notifications and no mediaplayer also.. sensors are seen and working..

[amadeo-alex]

It's good to use the templates when reporting bugs :)
Looks like this is less of a HASS.Agent bug but more of a Windows Community Toolkit issue: CommunityToolkit/WindowsCommunityToolkit#4858

There is a mention of Windows APP SDK as a potential fix for this but I've not yet checked it out.