Reproduction steps:
1. Open the attached project "ReproProj"
2. Observe the Console

Expected result: No Errors exist
Actual result: “ArgumentException: Trying to use an invalid resource” is present

Reproducible with: 6000.0.47f1, 6000.1.1f1, 6000.2.0a10
Could not test with: 2022.3.62f1 (Renderer2D is missing RendererFeatures)

Testing environment: Windows 10 Enterprise 21H2
Not reproducible on: No other environment tested

Note:
- Project was set up by following Unity URP2D Documentation ([https://docs.unity3d.com/6000.2/Documentation/Manual/urp/post-processing/post-processing-custom-effect-low-code.html|https://docs.unity3d.com/6000.2/Documentation/Manual/urp/post-processing/post-processing-custom-effect-low-code.html])