How to reproduce:
1. Open the “IN-112304_ListViewBug“ project
2. Open the “SampleScene”
3. Enter Play mode
4. In Game view select numbers 4-12 (with shift-click or control-click)
5. In the Hierarchy select “UIDocument”
6. In the Inspector click the three dots on the “Test Script” Component and select “FilterItems”
7. In the Inspector click the three dots on the “Test Script” Component and select “Print out selection”
8. Observe the console log

Expected result: The selected indices match the filtered itemsSource list size and selected items does not contain null items
Actual result: The logs show the selected indices are bigger than the filtered itemsSource size and there are null objects in selected items

Reproducible with: 6000.0.1f1, 6000.0.57f1, 6000.2.4f1, 6000.3.0b1
Not reproducible with: 6000.0.0f1

Reproducible on: macOS 15.6.1 (M1 Max), Windows 11 (by user)
Not reproducible on: no other environments tested