Repo steps:

1. Open Core Unity Scene
2. Open Window > Package Manager
3. Check Visual Effect Graph is installed
4. Right click the Project Menu
5. Click Create > Visual Effects > Visual Effect Graph
6. Name the Graph anything > Double Click Graph in Project Menu
7. Observe Console

Expected Result: No Errors in Console 

Actual Result: Shader Error appears in the console 

First noticed in: 2020.3.46f1

Reproducible with: 2020.3.46f1

Not Reproducible with: 2021.1.0a1, 2021.2.19f1, 2021.3.21f1, 2022.2.12f1, 2023.1.0b9, 2023.2.0a8

Platforms tested: Win 10, Win 11

Notes:

Shader error in 'Hidden/VFX/New VFX/System/Output Particle Quad': redefinition of 'PackHeightmap' at (111)/Library/PackageCache/com.unity.render-pipelines.core@10.10.1/ShaderLibrary/Common.hlsl(1202) (on d3d11)

Compiling Vertex program

Platform defines: SHADER_API_DESKTOP UNITY_ENABLE_DETAIL_NORMALMAP UNITY_ENABLE_REFLECTION_BUFFERS UNITY_LIGHTMAP_FULL_HDR UNITY_LIGHT_PROBE_PROXY_VOLUME UNITY_PASS_FORWARDBASE UNITY_PBS_USE_BRDF1 UNITY_SPECCUBE_BLENDING UNITY_SPECCUBE_BOX_PROJECTION UNITY_USE_DITHER_MASK_FOR_ALPHABLENDED_SHADOWS

Disabled keywords: SHADER_API_GLES30 UNITY_ASTC_NORMALMAP_ENCODING UNITY_COLORSPACE_GAMMA UNITY_ENABLE_NATIVE_SHADOW_LOOKUPS UNITY_HALF_PRECISION_FRAGMENT_SHADER_REGISTERS UNITY_HARDWARE_TIER1 UNITY_HARDWARE_TIER2 UNITY_HARDWARE_TIER3 UNITY_LIGHTMAP_DLDR_ENCODING UNITY_LIGHTMAP_RGBM_ENCODING UNITY_METAL_SHADOWS_USE_POINT_FILTERING UNITY_NO_DXT5nm UNITY_NO_FULL_STANDARD_SHADER UNITY_NO_SCREENSPACE_SHADOWS UNITY_PBS_USE_BRDF2 UNITY_PBS_USE_BRDF3 UNITY_PRETRANSFORM_TO_DISPLAY_ORIENTATION UNITY_VIRTUAL_TEXTURING