How to reproduce:
1. Open the attached “IN-106314” project
2. Open the “SampleScene”
3. In the Assets folder open the “SG_Unlit.shadergraph”
4. Observe the Console window
5. Enter the Scene or Game view
6. Observe the spheres

Expected result: No errors appear in the Console and the middle sphere is not pink
Actual result: “Shader error in 'Shader Graphs/SG_Unlit'“ warning appears in the Console and the middle sphere renders pink

Reproducible with: 6000.0.1f1, 6000.0.52f1, 6000.1.10f1, 6000.2.0b8, 6000.3.0a1
Could not test with: 2022.1.0a1, 2022.3.64f1, 6000.0.0f1 (EvaluateAmbientProbe API not implemented)

Reproduced on: Windows 11, macOS15 (M1) (user reported)
Not reproduced on: No other environment tested