Steps to reproduce:

1. Import the attached package to HDRP
2. Import it for the second time
3. Observe the console

Actual results: Errors are thrown to the console

Reproducible with versions: 6000.2.0a10, 6000.1.0f1, 6000.0.47f1

Not reproducible with versions:  2022.3.61f1

Can’t test with versions: 

Tested on (OS): macOS

Notes:

• All effects in MainMenu folder throw errors
• Clicking on MainMenu-BG.vfx Asset it throws errors
• Opening VFX or putting it to scene it throw errors as well

• Shader error in '[MainMenu-BG] [BG Lines] Initialize Particle': undeclared identifier '_Color' at kernel CSMain at MainMenu-BG.vfx(140) (on metal)
• [MainMenu-BG] [BG Clouds] OutputUpdate.compute: Kernel at index (0) is invalid

UnityEditor.PreviewRenderUtility:Render (bool,bool)
VisualEffectAssetEditor:OnInteractivePreviewGUI (UnityEngine.Rect,UnityEngine.GUIStyle) (at ./Library/PackageCache/com.unity.visualeffectgraph@d36b3d483f56/Editor/Inspector/VFXAssetEditor.cs:468)
UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&)