How to reproduce:
1. Open the attached “IN-107983” project
2. Open the “TestScene”
3. Enter Play mode
4. Notice an effect is applied to the quad
5. Exit Play mode
6. In the project tab, select the “PC_High_Renderer” asset
7. In the Inspector, find and expand the “Custom Render Feature“
8. Toggle on the “Run Async” property
9. Observe the Scene/Game view and the Console

Expected result: No errors are thrown, Scene/Game view are rendered and the effect is applied when entering Play mode
Actual result: Scene/Game views are not rendered and two errors are thrown in the Console

Reproducible with: 6000.0.0b15, 6000.0.54f1, 6000.1.0b4, 6000.2.0a1
Not reproducible with: 6000.1.12f1, 6000.2.0b10, 6000.3.0a2
Could not test with: 2023.1.0a1, 6000.0.0b14 (multiple namespace errors)
Fixed in: 6000.1.0b5, 6000.2.0a2

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Note: Errors “Render Graph Execution error” and “KeyNotFoundException: The given key '0' was not present in the dictionary.” are thrown