Edit delta object

[ErickGonzalez01]

I am having problems editing a delta object which I request from my api, I can display the content without problems in the editor, the problem arises with the need to edit that same delta content, and used <quill-editor v-model:content="contenido.contenido" contentType="delta" @ready="quill = $event"/>
following this stackoverflow example https://stackoverflow.com/questions/77073049/how-to-set-vue-quill-editor-delta-content-in-the-editor but I haven't had the expected result.

The following image shows the result obtained with the code shared above

any ideas to solve the problem?

This is my complete code of my vue
`<script setup>
import NavBar from "@/components/notas/NavBar.vue"
import {useRouter} from "vue-router";
import {UseURLBase} from "@/stores/url_base.js";
import {Usuario} from "@/stores/usuario.js";
import {ref, defineProps} from "vue"
import SpinerModal from "@/components/SpinerModal.vue";

const spiner = ref({
show: false,
info: "Cargando..."
})
const props = defineProps({
id: {
type: String,
required: true
}
})
const api = UseURLBase()
const endpoint = api.url+"/api/user/notes/"+props.id
const usuario = Usuario()
const router = useRouter()

const contenido = ref({
titulo: "",
contenido:null
})

const quill = ref(null)

const ql_show = ref(false)
async function load(){
spiner.value.show=true
const response = await fetch(endpoint,{
method: "GET",
headers: {
Authorization: "Bearer "+usuario.token
}
}).then((response)=>response.json())

if(response){
  if(response.data.status==false){
    router.push({path: "/authentication/login"})
  }
  if(response.data[0]==null){
    router.push({path: "/"})
  }else{
    quill.value.setContents(response.data[0].contenido) //=response.data[0].contenido
    contenido.valuetitulo=response.data[0].titulo
    setTimeout(()=>{
      ql_show.value=true
      spiner.value.show=false
    },5000)
  }
  console.log("Editar data: ", response.data[0].contenido)
}

}
load()
</script>

Titulo:

Cancelar

{{contenido}}

<style> .ql-editor{ height: 61.8vh!important; } </style>`