diff --git a/Assets/VRM/UniGLTF/Scripts/IO/ImporterContext.cs b/Assets/VRM/UniGLTF/Scripts/IO/ImporterContext.cs
index bd13f27aa..aa961fe2b 100644
--- a/Assets/VRM/UniGLTF/Scripts/IO/ImporterContext.cs
+++ b/Assets/VRM/UniGLTF/Scripts/IO/ImporterContext.cs
@@ -394,7 +394,7 @@ namespace UniGLTF
             Root.name = Path.GetFileNameWithoutExtension(path);
         }
 
-        public static ITextureLoader CreateTextureLoader(int index)
+        public virtual ITextureLoader CreateTextureLoader(int index)
         {
 #if UNIGLTF_USE_WEBREQUEST_TEXTURELOADER
             return new UnityWebRequestTextureLoader(index);
@@ -403,7 +403,7 @@ namespace UniGLTF
 #endif
         }
 
-        public virtual void CreateTextureItems(UnityPath imageBaseDir = default(UnityPath))
+        public void CreateTextureItems(UnityPath imageBaseDir = default(UnityPath))
         {
             if (m_textures.Any())
             {
@@ -431,7 +431,7 @@ namespace UniGLTF
                 else
 #endif
                 {
-                    item = new TextureItem(i, CreateTextureLoader);
+                    item = new TextureItem(i, CreateTextureLoader(i));
                 }
 
                 AddTexture(item);
diff --git a/Assets/VRM/UniGLTF/Scripts/IO/TextureItem.cs b/Assets/VRM/UniGLTF/Scripts/IO/TextureItem.cs
index 0cab81f19..261fb6117 100644
--- a/Assets/VRM/UniGLTF/Scripts/IO/TextureItem.cs
+++ b/Assets/VRM/UniGLTF/Scripts/IO/TextureItem.cs
@@ -110,10 +110,15 @@ namespace UniGLTF
         /// Texture from buffer
         /// </summary>
         /// <param name="index"></param>
-        public TextureItem(int index, Func<int, ITextureLoader> textureLoaderFactrory)
+        public TextureItem(int index, ITextureLoader textureLoader)
         {
             m_textureIndex = index;
-            m_textureLoader = textureLoaderFactrory(index);
+            m_textureLoader = textureLoader;
+
+            if(m_textureLoader == null)
+            {
+                throw new Exception("ITextureLoader is null.");
+            }
         }
 
 #if UNITY_EDITOR
diff --git a/Assets/VRM/UniVRM/Scripts/Format/VRMImporterContext.cs b/Assets/VRM/UniVRM/Scripts/Format/VRMImporterContext.cs
index 416f308df..a4d092286 100644
--- a/Assets/VRM/UniVRM/Scripts/Format/VRMImporterContext.cs
+++ b/Assets/VRM/UniVRM/Scripts/Format/VRMImporterContext.cs
@@ -307,7 +307,7 @@ namespace VRM
                 // 作成する(先行ロード用)
                 if (gltfMeta.texture >= 0 && gltfMeta.texture < GLTF.textures.Count)
                 {
-                    var t = new TextureItem(gltfMeta.texture, CreateTextureLoader);
+                    var t = new TextureItem(gltfMeta.texture, CreateTextureLoader(gltfMeta.texture));
                     t.Process(GLTF, Storage);
                     meta.Thumbnail = t.Texture;
                 }