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Combox Errors in KernelBase.dll--> WinRT Transform error

See original GitHub issue

Describe the bug

Combo box throws the following error when bound to an Observable collection of complex custom objects

Steps to reproduce the bug

Steps to reproduce the behavior: Bind a combobox to an observable collection using classic binding ItemsSource= {Binding CollectionName}, I am not using x:Bind since I am using MVVM pattern. These errors do not crash the app, however there are bunch of these errors when I click on the ComboBox dropdown. Wondering how this can be fixed, is this a known issue?

   <ComboBox x:Name="ClientList"  PlaceholderText="Pick a Client" ItemsSource="{Binding Clients}" DisplayMemberPath="name" SelectedValuePath="id" IsEditable="True"  
          Header="Client" Width="175">
                <Interactivity:Interaction.Behaviors>
                     <Interactions:EventTriggerBehavior EventName="SelectionChanged" SourceObject="{Binding 
                       ElementName=ClientList}" >
                        <Interactions:InvokeCommandAction Command="{Binding ClientSelectionChangedCommand}" CommandParameter="{Binding ElementName=ClientList, Path=SelectedItem}"/>
                    </Interactions:EventTriggerBehavior>
                </Interactivity:Interaction.Behaviors>
      </ComboBox>

Expected behavior

There should be no errors Screenshots

Version Info

NuGet package version: WinUI 0.8.0-preview

Windows app type:

UWP	Win32
	Yes

Windows 10 version	Saw the problem?
Insider Build (xxxxx)
October 2020 Update (19042)
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May 2019 Update (18362)	Yes
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