Reproduction steps:
1. Open the attached project "ReproProj"
2. Open the “/Assets/DevDunkStudio/LightReceiver/Demo/Scene/LightReceiverDemo.unity” Scene
3. Observe that the Scene is pink and missing shader
4. Go to the LightsReceiver tab
5. Change Precision to Half in Graph Inspector > Graph settings
6. Observe that the Scene now has textures and shader

Expected result: When Single Precision is selected the Scene has texture and shader
Actual result: When Single Precision is selected the Scene is pink and missing shader

Reproducible with: 2021.3.29f1, 2022.3.7f1, 2023.1.9f1, 2023.2.0b5, 2023.3.0a3

Reproducible on: Android Platform
Not reproducible on: Windows Standalone Platform
Could not be tested on: Mac Intel (Shader error in 'Master': Program 'frag', error X8000: D3D11)

Testing environment: Windows 10 Enterprise 21H2

Note:
- Only reproduces when the Precision in Shader Graph is set to "Single"
- Issue does not reproduce if “specularColor *= Smoothness;” is added as seen in the attached video “*2023-08-09 12-53-36.mp4*“