- Auto exposer causes light flash effects and the Game view becomes white on taking Virtual Camera.
- On hovering/clicking mouse on Gameview/Scene view, it becomes normal again.
- Working Fine with 3D Template.
- The issue also occurring with FreeLook camera.

Steps to repro:
1. Create a new HDRP template project.
2. Windows > Package Manager> Cinemachine (2.6.0) > Install.
3. Create a Virtual Camera from Cinemachine menu.

Actual Result:
Game view becomes white on creating Virtual Camera.

Expected Result:
Game view should not become white on creating Virtual Camera.

Reproducible in:
2020.2.0a7 with Package version 2.6.0, 2.5.0

Working Fine in:
2020.2.0a5 with Package Version 2.6.0, 2.5.0
2020.1.0b5 with Package Version 2.6.0, 2.5.0

Environment:
Only on Windows 10.