Missing scripts in Unity 2022+

Unity: SRP Templates

URP

Package Samples

6.2.X

6000.2.9f1

6.0.X

2022.3.X

6.4.X

6.3.X

6.1.X

Not reproductible on 6000.4.0a2 (Trunk)

Not reproductible on 6000.3/staging

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

Steps to reproduce:

Create a new Universal 3D project.
Open Window > Package Manager > Universal RP.
Click "Samples" tab and click "Import" next to URP Package Samples.
You may have to change the Render Pipeline Asset according to the instructions in Game View.
Enter play in the following sample scenes:
- RendererFeatures > OcclusionEffect
- CameraStacking > SplitScreen

Actual results: Missing script warnings when play mode is entered.

Expected results: No warnings.

Reproducible with versions: 6000.0.1f1, 2022.3.28f1, 2022.2.21f1, 2022.1.24f1, 2022.1.0a12

Not reproducible with versions: 2021.3.38f1, 2022.1.0a11

Tested on (OS): macOS (Intel) 12.7.4

Notes:

See also linked [Internal link] for missing scripts in the package samples that occur in Unity 6 only.
Oddly, both a11 and a12 seem to be using URP 13.0.0