Reproduction steps:
1. Open the attached “IN-114477.zip” project
2. Make sure Compatibility Mode is enabled (Edit > Project Settings > Graphics > Render Graph > Compatibility Mode)
3. Open the “SampleScene”
4. Enter Play mode
5. Observe the Console

Expected result: No warning
Actual result: “CommandBuffer: temporary render texture not found while executing” warnings

Reproducible with: 6000.0.30f1, 6000.0.57f1, 6000.2.4f1, 6000.3.0b1
Not reproducible with: 6000.0.29f1

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

Notes:
- Issue reproduces when one of the Cameras is set as Overlay and stacked on the Main Camera and in the Renderer asset has a different asset set. Does not reproduce if both Cameras have the same Renderer selected
- To test in 6000.3, you must add {{URP_COMPATIBILITY_MODE}} in Scripting Define Symbols (Edit > Project Settings > Player)