The Vertical scrollbar for the Inspector Window flickers and disappears on resizing the window.
Refer to the attached video.

Steps to Reproduce:
1. Create a New Project
2. Hierarchy > Gameobject > Inspector
3. Add some components or dock another window underneath so that the scrollbar for the Inspector window appears
4. Resize the window

Actual Result:
Scrollbar flickers and disappears while resizing the window

Expected Result:
Scrollbar should resize and adjust along with the Inspector window

Occurring on:
2020.2.0a1, 2020.1.0a26, 2020.1.0a23

Working Fine on:
2020.1.0a22, 2019.3.4f1

Environment:
Only Windows 10