I’m trying to dynamically create radio element with server data and v-for, but radio buttons don’t work properly

  <q-item v-for="(item3, index) in MyValues">
     <q-radio v-model="item3.model" :val="item3.val" :label="item3.label"></q-radio>
  </q-item>

json data
MyValues: [{label: “Radio 1”, model: “selectedIndex”, val:2}, {label: “Radio 2”, model: “selectedIndex”, val:3}]

After creating both of radio buttons checked and can’t be unchecked. Pls help.