Reproduction steps:
1. Open the attached "GameViewGizmoError.zip" project
2. Open the “Assets/Scenes/SampleScene.unity”
3. Switch to the Game view window
4. Activate Gizmos
5. Observe the Game view and console
Actual result: Game view is not rendered, and an Exception is thrown in the console
Expected result: Gizmos are shown and no errors are thrown
Reproducible with: 6000.3.0a1, 6000.3.3f1, 6000.4.0b3, 6000.5.0a4
Not reproducible with: 6000.0.65f1, 6000.2.0b2 (2bdac9ac0d74), 6000.2.15f1
Reproduced on: Windows 11
Not reproducible on: No other environments tested
Note: Anti-Aliasing (MSAA) can be set to any positive value for it to reproduce