Agenda issue when using CosmosDB - agenda:db_init index creation failed

Question

I am using agenda v5.0.0 with MongoDB client. I can establish connectivity but looks like the issue is with creating the index which fails. Bellow is my code structure.

agenda.ts:

import Agenda from 'agenda',
import {MongoClient} from 'mongodb',
import {cosmosDBConfig} from '../config/cosmosDBConfig';

const encodedConnectionString = encodeURIComponent(cosmosDBConfig.connectionString);

const mongoConnectionString = `mongodb://${cosmosDBConfig.username}:${encodedConnectionString}@${cosmosDBConfig.host}:${cosmosDBConfig.port}/${cosmosDBConfig.database}?ssl=${cosmosDBConfig.ssl}`;

const mongoDb = new MongoClient(mongoConnectionString).db(cosmosDBConfig.database);

const AgendaSingleton = new Agenda({
   mongo: mongoDB,
   db: {
     address: mongoConnectionStringAgenda,
     collection: cosmosDBConfig.collection,
   }
   sort: {nextRunAt: 1},
});

export {AgendaSingleton};

testAgenda.ts

import {AgendaSingleton} from '../utils/agenda';

AgendaSingleton.define('Test Job 1', async job => {
    console.log('Test Job 1 run');
});

AgendaSingleton.every('3 minutes', 'Test Job 1');

When I run testAgenda file I get the following log "agenda:db_init index creation failed" and then the following error:

const timeout = new MongoServerSelectError(

MongoServerSelectionError: connection <monito> to [::1]:10255

)