Grabpass does not work when the Render Target is set to Camera and specific Viewport values are set (0,0.5,0.5,0.5)

Unity: DirectX11

6.5.X

6000.5.0a1

6.4.X

6000.4.0a6

6.3.X

6.2.X

6000.2.15f1

6.0.X

2022.3.X

6.1.X

2021.3.X

Cancelling: the 6000.1 version has reached its end of life. If you need additional fixes, please upgrade to a newer Unity version.

Reproduction steps:
1. Open the attached “IN-110055.zip” project
2. Open the “SampleScene”
3. Enter Play mode
4. Observe the Game view

Expected result: The Render Target is correctly displayed on the RawImage
Actual result: The Render Target is not visible/displayed on the RawImage

Reproducible with: 2021.3.54f1, 2022.3.64f1, 6000.0.54f1, 6000.1.13f1, 6000.2.0b12, 6000.3.0a3

Reproducible on: Windows 11, Windows 10
Not reproducible on: No other environment tested

Notes:

It appears that the wrong “Y” value is used when calling CopySubresourceRegion()
Does not reproduce with OpenGL Graphics API
The issue can be bypassed on DirectX by setting the Viewport value to (0,0.25,0.5,0.5) instead
Also reproducible in the Player