Lazy loading of routes doesn't work in Nuxt js, what's wrong?

Question

Vue.js

I changed something in nuxt.config
and then lazy loading of components stopped working,
what's wrong here?
all scripts and styles are loaded at once

// nuxt.config.js
const path = require('path')
const webpack = require("webpack")

module.exports = {
    head: {
        title: 'nuxt-p',
        meta: [
            { charset: 'utf-8' },
            { name: 'viewport', content: 'width=device-width, initial-scale=1' }
        ],
        link: [
            { rel: 'icon', type: 'image/x-icon', href: '/favicon.ico' }
        ]
    },
    css: [
        '@/assets/css/app.styl'
    ],
    server: {
        port: 4444, // default: 3000
    },
    router: {
        linkActiveClass: 'active',
        linkExactActiveClass: 'exact-active',
    },
    render:{
        resourceHints: false
    },
    modules: [
        '@/modules/routes'
    ],
    plugins: [
        '~/plugins/vue-i18n',
        '~/plugins/mixins',
        '~/plugins/vuetify',
        '~/plugins/components'
    ],
    loading: {
        color: '#5ec900',
        failedColor: '#ff0000',
        height: '3px'
    },
    build: {
        vendor: ["jquery"],
        plugins: [
            new webpack.ProvidePlugin({
                $: "jquery"
            })
        ],
        extend (config, { isDev, isClient }) {
            if (isDev && isClient) {
                config.module.rules.push({
                    enforce: 'pre',
                    test: /\.(js|vue)$/,
                    loader: 'eslint-loader',
                    exclude: /(node_modules)/
                })
            }
            config.module.rules.push({
                test: /\.i18n$/,
                loader: `@kazupon/vue-i18n-loader?${JSON.stringify({
                    includePaths: [path.resolve(__dirname), 'node_modules']
                })}`
            });
        }
    }
}

// modules/routes.js
const path = require('path')
module.exports = function () {
  this.nuxt.options.build.createRoutes = () => {}
  this.addTemplate({
    fileName: 'router.js',
    src: path.resolve('${this.options.srcDir}', "router/router.js")
  })
}

// router.js
import Vue from 'vue'
import Router from 'vue-router'
import { interopDefault } from './utils'
Vue.use(Router)

export function createRouter () {
  const router = new Router({
    mode: 'history',
    routes: [
      {
        path: '/:lang/',
        component: () => interopDefault(import('@/pages/layout' /* webpackChunkName: "home" */)),
        children: [
          { path: '', redirect: { name: 'individual_home' } },
          {
            path: 'individual',
            component: () => interopDefault(import('@/pages/individual/index' /* webpackChunkName: "individual" */)),
            children: [
              { path: '', name: 'individual_home', component: () => interopDefault(import('@/pages/individual/home' /* webpackChunkName: "individual" */)) },
              { path: 'news', component: () => interopDefault(import('@/pages/individual/news/index' /* webpackChunkName: "individual" */)) }
            ]
          },
          { path: 'entity', name: 'entity', component: () => interopDefault(import('@/pages/entity/index' /* webpackChunkName: "entity" */)) },
          { path: '404', name: 'error', component: () => interopDefault(import('@/pages/error' /* webpackChunkName: "home" */)) },
          { path: '*', redirect: { name: 'error' } }
        ],
        beforeEnter(to, from, next){
          const lang = to.params.lang
          if (!['ru','en'].includes(lang)) {
            return next('/ru/individual')
          }
          return next()
        }
      }
    ]
  })

  router.beforeEach((to, from, next) => {
    const lang = to.params.lang
    if (!['ru','en'].includes(lang)) {
      next('/ru')
    }
    next()
  })

  return router
}