Pease help, Vuex Actions And References

Hello EveryOne, i Really need your help people,
I got Vue Component:

 <div class="uk-navbar-right">
   <ul class="uk-navbar-nav">
     <li v-for="(page, index) in Pages" :key="index">
       <a @click="$nuxt._router.push(page.url)">{{ page.title }}</a>
       <div v-if="page.subcategories">
         <li v-for="sub in page.subcategories" :key="sub.index">
           {{ sub }}
         </li>
       </div>
     </li>
   </ul>
 </div>
import { mapState } from 'vuex'
export default {
  data() {
    return {
      mediaUrl: process.env.apiUrl
    }
  },
  computed: {
    ...mapState('modules/general', {
      Pages: (state) => state.pages,
      Info: (state) => state.info
    })
  }
} 

And Vuex Component:

const mutations = {
  set_pages(state, payload) {
    payload.sort((a, b) => a.id - b.id)
    state.pages = payload
  }
}

const actions = {
  async get_info(context, payload) {
    const { data } = await Axios.get(process.env.apiUrl + '/api/settings')
    context.commit('set_info', data.data)
  },
  async get_pages(context, payload) {
    const { data } = await Axios.get(
      process.env.apiUrl +
        '/api/contents?type=%D0%A1%D1%82%D1%80%D0%B0%D0%BD%D0%B8%D1%86%D1%8B'
    )
    // Call Reference Action
    context.dispatch('get_reference', data.data)
  },
  // Getting References
  async get_reference(context, payload) {
    await payload.forEach(function(item, dataIndex, dataArray) {
      if (item.subcategories) {
        item.subcategories.forEach(function(
          reflink,
          referenceIndex,
          referenceArray
        ) {
          Axios.get(process.env.apiUrl + '/api' + reflink).then(function(
            response
          ) {
            referenceArray[referenceIndex] = response.data.data[0]
          })
        })
      }
    })
    const data = payload
    setTimeout(context.commit('set_pages', data))
  }
}

After page load, page.subcategories didn’t change, but in vuex state pages links from page.subcategories change to objects how i can solve render problem plz help!