Game/Scene View flickers when using multiframe rendering API

Note: this issue was originally reported to the Recorder team but can be reproduced when using only the multiframe API without the Recorder package.

Reproduction steps:

1. Open the attached [Internal link] project
2. Open the OutdoorsScene scene
3. Select the Main Camera GameObject
4. In the FrameManager component's context menu, select the Start Recording option

Expected result:
The Scene View and GameView windows should display the rendered content of the scene without any artifacts or unexpected behaviors

Actual result:
The Scene View and Game View windows start flickering black/white and the images recorded on disk are incorrect.

NOTES
The issue only seems to happen when specific values are used with the multiframe API. Notably:

• Samples = 2
• shutterInterval <= 0.5
• shutterFullyOpen > 0
• shutterBeginsClosing < 1

The problem might still be happening with other values but I've found this combination to be the most visible/obvious.