[Bug]: UniqueIdentifier not working

[Antwerps-Handje]

Checklist

• I have verified this is the correct repository for opening this issue.
• I have verified no other issues exist related to my problem.
• I have, to the best of my knowledge, that this isn't an environmental issue (Sorry, we can't help troubleshoot your infrastructure).

Steps to Reproduce

Create a new notification
Submit-BTNotification -Content $Content -UniqueIdentifier 'SomeName'

Call the scheduled notifications
Get-BTHistory -ScheduledToast

None of the properties: Tag, Groups are filled in/available
UniqueIdentifier is not even present

Expected Behavior

Tag, Groups should at least be populated
UniqueIdentifier be present

Actual Behavior

example output of current version:
Id :
Content : Windows.Data.Xml.Dom.XmlDocument
DeliveryTime : 14/07/2026 8:32:30 +02:00
MaximumSnoozeCount : 4294967295
SnoozeInterval : 00:05:00
Tag :
SuppressPopup : False
Group :
RemoteId :
NotificationMirroring : 360
ExpirationTime :

Experience with Toast

None

Environment data: PowerShell

Replace with the output of: $PSVersionTable

Environment data: OS

OsName         : Microsoft Windows 11 Enterprise LTSC
OsVersion      : 10.0.26100
OsArchitecture : 64-bit

Environment data: BurntToast

ModuleType Version    Name                                ExportedCommands
---------- -------    ----                                ----------------
Script     1.1.0      BurntToast                          {Get-BTHeader, Get-BTHistory, New-BTAction, New-BTAudio...}

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