Blueprint Viewport isn't interactable while a Window from the Sidebar is expanded

Blueprint Viewport isn't interactable while a Window from the Sidebar is expanded.

1. Create or Open any project
2. Create and open a Blueprint Actor
3. Change back to Level Editor
4. With the Content Browser docked right click the Content Browser tab then select 'Dock to Sidebar'
5. Expand the Content Browser from the sidebar
6. While it is expanded change to the opened Blueprint Actor
7. Try to move around the Blueprint Actor's Viewport

Expected Results:
User can move within the viewport.

Actual Results:
User cannot interact with the viewport.

Workaround:
Return to level editor tab and collapse the expanded content browser