Steps to reproduce:

1. Open any HDRP Project with Shader Graph Installed
2. Import the attached Unity Asset Package
3. Open Shader "CNM Hex Height"
4. Observe logs

Actual results:
{}Errors "Shader Compiler IPC Exception: Terminating shader compiler process{}{}"{}
Shader compiler: Compile Terrain/CNM Hex Height - GBuffer, Fragment Program: Internal error communicating with the shader compiler process.  Please report a bug including this shader and the editor log. Error code 0x80000004 (Not connected).
[Worker4] Shader Compiler IPC Exception: Terminating shader compiler process
[Worker4] Shader compiler: Compile Terrain/CNM Hex Height - GBuffer, Fragment Program: Internal error communicating with the shader compiler process.  Please report a bug including this shader and the editor log. Error code 0x80000004 (Not connected).
{}[Worker4] Shader error in 'Terrain/CNM Hex Height': Internal error communicating with the shader compiler process.  Please report a bug including this shader and the editor log. Error code 0x80000004 (Not connected).{}{}{}

Reproducible with versions: 6000.3.0a6

Can’t test with versions: 2022.3.66f1, 6000.0.56f1, 6000.1.16f1, 6000.2.2f1 (No Terrain Shader Graph)

Tested on (OS): Windows 11