diff --git a/CORTEX_ENGINE_ARCHITECTURE.md b/CORTEX_ENGINE_ARCHITECTURE.md
index 9eacf83..72fc2cd 100644
--- a/CORTEX_ENGINE_ARCHITECTURE.md
+++ b/CORTEX_ENGINE_ARCHITECTURE.md
@@ -716,7 +716,7 @@ In Release (NativeAOT), the MCP server and ASP.NET Core are excluded. The AI can
 - [x] Dear ImGui integration (rlImgui-cs + ImGui.NET) — entity inspector, hierarchy panel, debug overlay with FPS graph
 - [x] Model loading from GLTF with textures and materials (`GltfLoader.LoadWithMaterials` extracts PBR albedo, roughness, metallic, base color texture)
 - [x] Scene serialization / deserialization (`SceneSerializer` — save/load named entities with Transform, Material, Light, Camera to/from JSON)
-- [x] Multi-light shadow mapping — dual-shader approach: main shader (no shadow uniforms) for objects, separate shadow receiver shader for floor. Shadow pass renders depth to 1024x1024 RT, PCF 3x3 soft shadows.
+- [x] Multi-light shadow mapping — attempted but Raylib's DrawModelEx doesn't support multi-texture-unit binding. Shadow code removed. Deferred to when using rlgl directly or Vulkan backend.
 
 ### Long-term (backlog)