• More info

1. The issue also can reproduce on .NET 5.0 RC2.
2. The issue can't reproduce on .NET SDK 3.1 and .NET 4.8.

• .NET Core Version:
  .NET SDK 6.0.100-alpha.1.20514.15

• Have you experienced this same bug with .NET Framework?:
  No

Problem description:
Missing the items displayed for CheckedListBox control in the inspect tool.

Minimal repro:

1. Create a .NET Core project with a CheckedListBox control.
2. Build and run the core project.
3. Observe the checkedListBox1 control in the Inspect tool on UI Automation mode.

Expected behavior:
The items displayed correctly for checkedListBox1 control in the Inspect tool.

Actual Behavior:
Missing the items displayed for checkedListBox1 control in the inspect tool.