Load Texture Custom Logic Error

[SpaceUserAR]

When trying to override the textures load with custom logic using the "OnResolveTexture" inside "MaterialImporter" scripts an exception is thrown and failed to load the textures.

ArgumentException: Empty path name is not legal. Parameter name: path System.IO.File.WriteAllBytes (System.String path, System.Byte[] bytes) (at <9d9536d9127f4a489d989c7a566aee1c>:0) Unity.Formats.USD.MaterialImporter.CombineRoughness (UnityEngine.Texture2D rgbTex, UnityEngine.Texture2D roughnessTex, System.String fileNameSuffix) (at Library/PackageCache/com.unity.formats.usd@3.0.0-exp.5/Runtime/Scripts/IO/Materials/MaterialImporter.cs:362) Unity.Formats.USD.UrpShaderImporter.ImportFromUsd () (at Library/PackageCache/com.unity.formats.usd@3.0.0-exp.5/Runtime/Scripts/IO/Materials/UrpShaderImporter.cs:81) Unity.Formats.USD.MaterialImporter.BuildMaterial (USD.NET.Scene scene, System.String materialPath, USD.NET.Unity.MaterialSample sample, Unity.Formats.USD.SceneImportOptions options) (at Library/PackageCache/com.unity.formats.usd@3.0.0-exp.5/Runtime/Scripts/IO/Materials/MaterialImporter.cs:183) Unity.Formats.USD.SceneImporter+<BuildScene>d__10.MoveNext () (at Library/PackageCache/com.unity.formats.usd@3.0.0-exp.5/Runtime/Scripts/IO/Scene/SceneImporter.cs:537) Rethrow as ImportException: Error processing material </World/rest/Looks/Accessories> UnityEngine.Debug:LogException(Exception) Unity.Formats.USD.<BuildScene>d__10:MoveNext() (at Library/PackageCache/com.unity.formats.usd@3.0.0-exp.5/Runtime/Scripts/IO/Scene/SceneImporter.cs:548) Unity.Formats.USD.SceneImporter:BuildScene(Scene, GameObject, SceneImportOptions, PrimMap, Boolean) (at Library/PackageCache/com.unity.formats.usd@3.0.0-exp.5/Runtime/Scripts/IO/Scene/SceneImporter.cs:371) Unity.Formats.USD.SceneImporter:ImportUsd(GameObject, Scene, PrimMap, Boolean, SceneImportOptions) (at Library/PackageCache/com.unity.formats.usd@3.0.0-exp.5/Runtime/Scripts/IO/Scene/SceneImporter.cs:318) Unity.Formats.USD.SceneImporter:ImportUsd(GameObject, Scene, PrimMap, SceneImportOptions) (at Library/PackageCache/com.unity.formats.usd@3.0.0-exp.5/Runtime/Scripts/IO/Scene/SceneImporter.cs:270)