The game/player view doesn't update when Graphics.Blit is called at the end of frame, after WaitForEndOfFrame.

In the example project a moving cube is used just to help show that the screen is updating. The code for this is in Moving.cs.

Important blit code is in EndOfFrameBlit.cs.

To repro:
1: Open attached project
2: Open Main.unity scene and enter Play Mode
3: On EndOfFrameBlit GameObject you can set the "End Of Frame" bool for if the Graphics.Blit should be done after WaitForEndOfFrame
4: When bool is true the game view doesn't update (cube doesn't move)