Describe the bug

When I use an AdvancedCollectionView and remove the last element from the bound collection the following exception thrown: 'System.ArgumentOutOfRangeException' in System.Private.CoreLib.dll Index was out of range. Must be non - negative and less than the size of the collection.

• Is this bug a regression in the toolkit?

Steps to Reproduce

• Can this be reproduced in the Sample App?

Steps to reproduce the behavior:

1. AdvancedCollectionView.zip
2. Start application
3. Click on 'Delete last'
4. See error in message box.

Expected behavior

The last element should be deleted without error.

Environment

NuGet Package(s):
Package Version(s):

    <PackageReference Include="Microsoft.NETCore.UniversalWindowsPlatform">
      <Version>6.2.12</Version>
    </PackageReference>
    <PackageReference Include="Microsoft.Toolkit.Uwp">
      <Version>7.1.0-rc2</Version>
    </PackageReference>
    <PackageReference Include="Microsoft.Toolkit.Uwp.UI">
      <Version>7.1.0-rc2</Version>
    </PackageReference>
    <PackageReference Include="Microsoft.Toolkit.Uwp.UI.Controls">
      <Version>7.1.0-rc2</Version>
    </PackageReference>

Windows 10 Build Number:

• Fall Creators Update (16299)
• April 2018 Update (17134)
• October 2018 Update (17763)
• May 2019 Update (18362)
• May 2020 Update (19041)
• Insider Build ({build_number})

App min and target version:

• Fall Creators Update (16299)
• April 2018 Update (17134)
• October 2018 Update (17763)
• May 2019 Update (18362)
• May 2020 Update (19041)
• Insider Build ({build_number})

Device form factor:

• Desktop
• Xbox
• Surface Hub
• IoT

Visual Studio version:

• 2017 (15.{minor_version})
• 2019 (16.11.3)
• 2022 (17.{minor_version})