diff --git a/03-UnrealEngine/Rendering/Material/ShaderWorld Debug笔记.md b/03-UnrealEngine/Rendering/Material/ShaderWorld Debug笔记.md
index 6c0675e..77b59d6 100644
--- a/03-UnrealEngine/Rendering/Material/ShaderWorld Debug笔记.md	
+++ b/03-UnrealEngine/Rendering/Material/ShaderWorld Debug笔记.md	
@@ -94,7 +94,8 @@ return mul(InWorldVector, (MaterialFloat3x3)LWCToFloat(GetPrimitiveData(Paramete
 }
 ```
 
-
+## 其他bug
+- Vulkan & OpenGL Preview 必然崩溃。
 ##
 ```c++
 	#if USE_INSTANCING || USE_INSTANCE_CULLING