diff --git a/assets/lcc-ui-sorting-group/engine-extend.ts b/assets/lcc-ui-sorting-group/engine-extend.ts
index 8a6df83..ca8545e 100644
--- a/assets/lcc-ui-sorting-group/engine-extend.ts
+++ b/assets/lcc-ui-sorting-group/engine-extend.ts
@@ -72,13 +72,6 @@ export function updateOpacity (renderData: RenderData, opacity: number) {
     }
 }
 
-const UI_initialize = UI.prototype.initialize;
-UI.prototype.initialize = function(){
-    this.rendererCache = [];
-    this.rendererOrder = false;
-    return UI_initialize.call(this);
-}
-
 UI.prototype.flushRendererCache = function(){
     const rendererCache = this.rendererCache;
     if(rendererCache.length > 0){
@@ -104,6 +97,8 @@ UI.prototype.update = function() {
     if (JSB) {
         return;
     }
+    this.rendererCache = this.rendererCache ?? [];
+    this.rendererOrder = false;
     const screens = this._screens;
     let offset = 0;
     for (let i = 0; i < screens.length; ++i) {
diff --git a/assets/test/scenes/test-scene-sorting.scene b/assets/test/scenes/test-scene-sorting.scene
index dba731f..e20bb34 100644
--- a/assets/test/scenes/test-scene-sorting.scene
+++ b/assets/test/scenes/test-scene-sorting.scene
@@ -244,7 +244,7 @@
     "_prefab": null,
     "_lpos": {
       "__type__": "cc.Vec3",
-      "x": 960,
+      "x": 959.9999999999999,
       "y": 540,
       "z": 0
     },
@@ -897,8 +897,8 @@
     "__prefab": null,
     "_alignFlags": 45,
     "_target": null,
-    "_left": 0,
-    "_right": 0,
+    "_left": -1.1368683772161603e-13,
+    "_right": -1.1368683772161603e-13,
     "_top": 0,
     "_bottom": 0,
     "_horizontalCenter": 0,
diff --git a/assets/test/scenes/test-scene.scene b/assets/test/scenes/test-scene.scene
index d0b21be..84a0890 100644
--- a/assets/test/scenes/test-scene.scene
+++ b/assets/test/scenes/test-scene.scene
@@ -244,7 +244,7 @@
     "_prefab": null,
     "_lpos": {
       "__type__": "cc.Vec3",
-      "x": 960,
+      "x": 959.9999999999999,
       "y": 540,
       "z": 0
     },
@@ -897,8 +897,8 @@
     "__prefab": null,
     "_alignFlags": 45,
     "_target": null,
-    "_left": 0,
-    "_right": 0,
+    "_left": -1.1368683772161603e-13,
+    "_right": -1.1368683772161603e-13,
     "_top": 0,
     "_bottom": 0,
     "_horizontalCenter": 0,