From f5881cb567e67e47d68d04d3a4f23d02e3abb709 Mon Sep 17 00:00:00 2001
From: ousttrue <ousttrue@gmail.com>
Date: Thu, 9 Jul 2026 13:45:15 +0900
Subject: [PATCH] Fix import Exception from Unity-6.4

---
 .../Texture/Importer/TextureImporterConfigurator.cs  | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/Packages/UniGLTF/Editor/UniGLTF/IO/Texture/Importer/TextureImporterConfigurator.cs b/Packages/UniGLTF/Editor/UniGLTF/IO/Texture/Importer/TextureImporterConfigurator.cs
index ccf176dab..a29adacde 100644
--- a/Packages/UniGLTF/Editor/UniGLTF/IO/Texture/Importer/TextureImporterConfigurator.cs
+++ b/Packages/UniGLTF/Editor/UniGLTF/IO/Texture/Importer/TextureImporterConfigurator.cs
@@ -81,7 +81,17 @@ namespace UniGLTF
             if (!EditorTextureUtility.TryGetAsEditorTexture2DAsset(externalTexture, out var texture2D, out var importer)) return;
 
             Configure(texDesc, importer);
-            importer.SaveAndReimport();
+
+            // https://github.com/vrm-c/UniVRM/issues/2813 (4)
+            // https://github.com/vrm-c/UniVRM/issues/2783
+            //
+            // UnityException: Calls to "AssetDatabase.ImportAsset" are restricted during asset importing.
+            // Please make sure this function is not called from ScriptedImporters or PostProcessors,
+            // as it is a source of non-determinism.
+            UnityEditor.EditorApplication.delayCall += () =>
+            {
+                importer.SaveAndReimport();
+            };
         }
     }
 }