Big part of the views are broken and "InsightWidget" is missing

In QDS 4.3 Built on Sep 21 2023 10:24:50, at least these views are broken and not showing anything:

• Properties
• Material Editor
• Texture Editor
• Components
• Material Browser
• Content Library

See the video for demonstration.

qtdesignstudio_B6kP7h7LLA.mp4

Also the "Cannot Create QtQuick View" error messagebox appears everytime, when user opens the QDS and it warns that "InsightWidget" is missing.