diff --git a/src/layaAir/laya/navigation/common/component/BaseNavMeshSurface.ts b/src/layaAir/laya/navigation/common/component/BaseNavMeshSurface.ts
index b0949524dc..48d88d5aa2 100644
--- a/src/layaAir/laya/navigation/common/component/BaseNavMeshSurface.ts
+++ b/src/layaAir/laya/navigation/common/component/BaseNavMeshSurface.ts
@@ -1,5 +1,3 @@
-
-
 import { Component } from "../../../components/Component";
 import { Vector3 } from "../../../maths/Vector3";
 import { NavTileData } from "../NavTileData";
@@ -440,6 +438,7 @@ export class BaseNavMeshSurface extends Component {
         bindDatas.forEach((value: any) => {
             NavigationUtils._freeLayaData(value);
         });
+        this._cachedata._titleIndex.clear();
         this._cachedata._cacheData = [];
     }
 
diff --git a/src/samples/view/IndexView2D.ts b/src/samples/view/IndexView2D.ts
index 1fd8ccdd56..75cc0f9d0c 100644
--- a/src/samples/view/IndexView2D.ts
+++ b/src/samples/view/IndexView2D.ts
@@ -134,6 +134,7 @@ import { Mesh2DRenderDemo } from "../2d/Mesh2DRenderDemo";
 import { Trail2DRenderDemo } from "../2d/Trail2DRenderDemo";
 import { TileMapLayerDemo } from "../2d/TileMapLayerDemo";
 import { RenderCMD2DDemo } from "../2d/RenderCMD2DDemo";
+import { Material2DDemo } from "../2d/Material2DDemo";
 
 /**
  * 首页View 
@@ -261,8 +262,8 @@ export class IndexView2D extends IndexViewUI {
     /************************HitTest-end***************************/
 
     /************************Render2D-start***************************/
-    private _render2DTestClsArr: any[] = [Camera2DDemo, Light2DDemo, Line2DRenderDemo, Mesh2DRenderDemo, Trail2DRenderDemo, TileMapLayerDemo, RenderCMD2DDemo];
-    private _render2DTestArr: any[] = ['2D相机', '2D灯光示例', '2D线段渲染器', '2D网格渲染器', '2D拖尾渲染器', '瓦块地图层级示例', '2D渲染命令示例'];
+    private _render2DTestClsArr: any[] = [Camera2DDemo, Material2DDemo, Light2DDemo, Line2DRenderDemo, Mesh2DRenderDemo, Trail2DRenderDemo, TileMapLayerDemo, RenderCMD2DDemo];
+    private _render2DTestArr: any[] = ['2D相机', "2D自定义材质示例", '2D灯光示例', '2D线段渲染器', '2D网格渲染器', '2D拖尾渲染器', '瓦块地图层级示例', '2D渲染命令示例'];
     /************************Render2D-end***************************/
 
     private _bigIndex: number = -1;