Reproduction steps:
1. Open the attached “repro_IN-90542“ project
2. Open the “Assets/SampleScene.unity“ Scene
3. Go to the “Assets/DEMOS/Reusable-Components/Demo/Editor“ folder
4. Select a few times between the “DemoUIToDropTheSliderIn.cs“ and the “DemoUIToDropTheSliderIn.uxml“
5. Observe the Console
Expected result: No errors appear
Actual result: “InvalidOperationException: Trying to release a data source that isn't tracked. This is an internal bug. Please report using ‘Help > Report a Bug...’“ error appears
Reproducible with: 2021.3.47f1, 2022.3.54f1, 6000.0.31f1, 6000.1.0a8
Reproducible on: Windows 10 (22H2), Windows 11 (24H2) (user’s environment)
Not reproducible on: No other environments tested