diff --git a/com.unity.render-pipelines.high-definition/CHANGELOG.md b/com.unity.render-pipelines.high-definition/CHANGELOG.md
index ef67484ccb4..5c1bc20a61c 100644
--- a/com.unity.render-pipelines.high-definition/CHANGELOG.md
+++ b/com.unity.render-pipelines.high-definition/CHANGELOG.md
@@ -41,6 +41,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed sky override layer mask having no effect.
 - Fixed a memory leak in the template tutorial (1374640).
 - Fixed a build-time warning regarding light loop variants (case 1372256).
+- Fixed an infinite import loop of materials when there is no HDMetaData generated by the ShaderGraph.
 
 ### Changed
 - Use RayTracingAccelerationStructure.CullInstances to filter Renderers and populate the acceleration structure with ray tracing instances for improved CPU performance on the main thread.
diff --git a/com.unity.render-pipelines.high-definition/Editor/AssetProcessors/MaterialPostProcessor.cs b/com.unity.render-pipelines.high-definition/Editor/AssetProcessors/MaterialPostProcessor.cs
index 784a3766c58..3dbb56982f3 100644
--- a/com.unity.render-pipelines.high-definition/Editor/AssetProcessors/MaterialPostProcessor.cs
+++ b/com.unity.render-pipelines.high-definition/Editor/AssetProcessors/MaterialPostProcessor.cs
@@ -286,6 +286,7 @@ class MaterialPostprocessor : AssetPostprocessor
     {
         internal static List<string> s_CreatedAssets = new List<string>();
         internal static List<string> s_ImportedAssetThatNeedSaving = new List<string>();
+        internal static Dictionary<string, int> s_ImportedMaterialCounter = new Dictionary<string, int>();
         internal static bool s_NeedsSavingAssets = false;
 
         // Important: This should only be called by the RegisterUpgraderReimport(), ie the shadegraph/material version
@@ -371,6 +372,14 @@ static void OnPostprocessAllAssets(string[] importedAssets, string[] deletedAsse
                     // we would miss re-importing that dependency.
                     if (MaterialReimporter.CheckHDShaderGraphVersionsForUpgrade("", material.shader, ignoreNonHDRPShaderGraphs: false))
                     {
+                        s_ImportedMaterialCounter.TryGetValue(asset, out var importCounter);
+                        s_ImportedMaterialCounter[asset] = ++importCounter;
+
+                        // CheckHDShaderGraphVersionsForUpgrade always return true if a ShaderGraph don't have an HDMetaData attached
+                        // we need a check to avoid importing the same assets over and over again.
+                        if (importCounter > 2)
+                            continue;
+
                         var shaderPath = AssetDatabase.GetAssetPath(material.shader.GetInstanceID());
                         AssetDatabase.ImportAsset(shaderPath);