I'm trying to pass a list of assets to the lwc from the controller but when reviewing the data, only the values of the standard fields are arriving, the custom fields do not appear

This is my controller
 

public with sharing class CarouselBannerController {
    @AuraEnabled(cacheable=true)
    public static List<Asset> getBanners() {
        List<Asset> ls = [
                            SELECT ID,Name,Activo__c,Audiciencias__c,url__c
                            FROM Asset
                            ORDER BY Name
                        ];
        Map<Id, Asset> m = new Map<Id, Asset>(ls);
        return ls;
        
    }
}

This is my carouselBanner.js

import { LightningElement,track,wire } from 'lwc';
import getBanners from '@salesforce/apex/CarouselBannerController.getBanners';


export default class CarouselBanner extends LightningElement {
    bannerResult;
    error;

    @wire(getBanners)
    wireBanners({error,data}){
        if(data){
            this.bannerResult = data;
            detail : this.bannerResult;
            console.log("resultado" + JSON.stringify(this.bannerResult))
        }else if (error){
            this.error = error;
            this.bannerResult = undefined;
        }
    }
}

the query has this data
 

| ID                  | NAME      | ACTIVO__C  | AUDICIENCIAS__C        | URL__C
|:------------------  | :-------- |:---------  |:---------------------  | ----------
| 02i19000003f5H0AAI  | Banner1   | false      | Brasil;Chile;Colombia  |www.google.com
| 02i19000003f46yAAA  | Banner2   | true       | Argentina              |https://player.vimeo.com/video/241135386
| 02i19000003f56wAAA  | Banner3   | true       | Colombia;Ecuador       |www.google.com

In the console.log only show me the error 

Error: [LWC error]: Invalid template iteration for value "undefined" in [object:vm undefined (12)]. It must be an Array or an iterable Object

and it only shows the values of the fields ID and NAME which are standard fields of the object
 

resultado[
{"Name":"Banner1","Id":"02i19000003f5H0AAI"},
{"Name":"Banner2","Id":"02i19000003f46yAAA"},
{"Name":"Banner3","Id":"02i19000003f56wAAA"}
]

but custom fields Activo__c,Audiciencias__c,url__c not appear , and i do not why