Amplify Graphql appsync data return illogic bug

Question

When I create an item, the item has created and I can get the item by id but when i get the list items doesn't contain the item created.

type Order @model @searchable{
  id: ID! @primaryKey
  ref: String!
  user: User @belongsTo
}

// first query works!!
query MyQuery {
  getOrder(id: "idxamplee") {
    id
    ref
  }
}

//second query not work
query MyQuery {
  listOrders() {
    items {
      id
      ref
    }
  }
}

amplify appsync dynamodb synchronization schemaUrl