diff --git a/examples/main.ts b/examples/main.ts
index 410cf8cb7..0e77f1bf1 100644
--- a/examples/main.ts
+++ b/examples/main.ts
@@ -2,20 +2,20 @@ import { createApp } from 'vue'
 import App from './App.vue'
 import router from './router'
 
-// import VxeUI from 'vxe-pc-ui'
-// import 'vxe-pc-ui/lib/style.css'
+import VxeUI from 'vxe-pc-ui'
+import 'vxe-pc-ui/lib/style.css'
 
-// import enUS from 'vxe-pc-ui/packages/language/en-US'
+import enUS from 'vxe-pc-ui/packages/language/en-US'
 
 import VxeTable from '../packages'
 import '../styles/all.scss'
 
 import './style/index.scss'
 
-// VxeUI.setI18n('en-US', enUS)
+VxeUI.setI18n('en-US', enUS)
 
 createApp(App)
   .use(router)
-  // .use(VxeUI)
+  .use(VxeUI)
   .use(VxeTable)
   .mount('#app')
diff --git a/package.json b/package.json
index d18e76354..874f8bac3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vxe-table",
-  "version": "4.7.55",
+  "version": "4.7.56",
   "description": "一个基于 vue 的 PC 端表格组件，支持增删改查、虚拟树、列拖拽，懒加载、快捷菜单、数据校验、树形结构、打印、导入导出、自定义模板、渲染器、JSON 配置式...",
   "scripts": {
     "update": "npm install --legacy-peer-deps",
diff --git a/packages/table/src/column.ts b/packages/table/src/column.ts
index 2bc469cbe..42454e0bd 100644
--- a/packages/table/src/column.ts
+++ b/packages/table/src/column.ts
@@ -1,5 +1,5 @@
 import { defineComponent, h, onUnmounted, inject, ref, Ref, PropType, provide, onMounted } from 'vue'
-import { XEColumnInstance, watchColumn, assemColumn, destroyColumn } from '../../table/src/util'
+import { XEColumnInstance, watchColumn, assembleColumn, destroyColumn } from '../../table/src/util'
 import Cell from '../../table/src/cell'
 
 import type { VxeTableConstructor, VxeTablePrivateMethods, VxeColumnPropTypes, VxeColumnProps } from '../../../types'
@@ -116,7 +116,7 @@ export default defineComponent({
     watchColumn($xeTable, props, column)
 
     onMounted(() => {
-      assemColumn($xeTable, refElem.value, column, parentColgroup)
+      assembleColumn($xeTable, refElem.value, column, parentColgroup)
     })
 
     onUnmounted(() => {
diff --git a/packages/table/src/columnInfo.ts b/packages/table/src/columnInfo.ts
index 7bfddbf4b..1ba28f2f3 100644
--- a/packages/table/src/columnInfo.ts
+++ b/packages/table/src/columnInfo.ts
@@ -156,7 +156,8 @@ export class ColumnInfo {
   }
 
   getKey () {
-    return this.field || (this.type ? `type=${this.type}` : null)
+    const { type } = this
+    return this.field || (type ? `type=${type}` : null)
   }
 
   update (name: string, value: any) {
diff --git a/packages/table/src/group.ts b/packages/table/src/group.ts
index a78035d02..63353b6dd 100644
--- a/packages/table/src/group.ts
+++ b/packages/table/src/group.ts
@@ -1,6 +1,6 @@
 import { defineComponent, h, onUnmounted, provide, inject, ref, Ref, onMounted, Slot } from 'vue'
 import { columnProps } from './column'
-import { XEColumnInstance, watchColumn, assemColumn, destroyColumn } from '../../table/src/util'
+import { XEColumnInstance, watchColumn, assembleColumn, destroyColumn } from '../../table/src/util'
 import Cell from '../../table/src/cell'
 
 import type { VxeTableConstructor, VxeTablePrivateMethods } from '../../../types'
@@ -27,7 +27,7 @@ export default defineComponent({
     watchColumn($xeTable, props, column)
 
     onMounted(() => {
-      assemColumn($xeTable, refElem.value, column, parentColgroup)
+      assembleColumn($xeTable, refElem.value, column, parentColgroup)
     })
 
     onUnmounted(() => {
diff --git a/packages/table/src/table.ts b/packages/table/src/table.ts
index 3f2adf672..d3b189119 100644
--- a/packages/table/src/table.ts
+++ b/packages/table/src/table.ts
@@ -2911,7 +2911,7 @@ export default defineComponent({
           }, { children: childrenField })
           row[childrenField] = rows
           if (transform) {
-            row[mapChildrenField] = rows
+            row[mapChildrenField] = XEUtils.clone(rows, false)
           }
           updateAfterDataIndex()
           return rows
diff --git a/packages/table/src/util.ts b/packages/table/src/util.ts
index 2066b088b..4bb3a275e 100644
--- a/packages/table/src/util.ts
+++ b/packages/table/src/util.ts
@@ -290,7 +290,7 @@ export function watchColumn ($xeTable: VxeTableConstructor & VxeTablePrivateMeth
   })
 }
 
-export function assemColumn ($xeTable: VxeTableConstructor & VxeTablePrivateMethods, elem: HTMLElement, column: ColumnInfo, colgroup: XEColumnInstance | null) {
+export function assembleColumn ($xeTable: VxeTableConstructor & VxeTablePrivateMethods, elem: HTMLElement, column: ColumnInfo, colgroup: XEColumnInstance | null) {
   const { reactData } = $xeTable
   const { staticColumns } = reactData
   const parentElem = elem.parentNode