Problem with execution flow using async.series

I have the following application:

var async = require('async');

function foo() {
    async.series({
        functionName1: function (callback) {
            promiseResolve()
                .then(result => {
                    callback(null, result);
                }).catch(error => {
                    console.log('problema na funcao 1');
                    callback(error, null);
                });
        }, 
        functionName2: function (callback) {
            promiseReject()
                .then(result => {
                    callback(null, result);
                }).catch(error => {
                    console.log('problema na funcao 2');
                    callback(error, null);
                });
        }
    }, function (error, results) {
        if (error) {
            console.log(error);
        }
    });
}

function promiseResolve() {
    // return promise resolve();
}

function promiseReject() {
    // ocorre um erro sintatico
}

Whereas within async.series I have two functions, functionName1 , and functionName2 . And in functionName1 I call another function out called promiseResolve() which will return a resolved resolve, and the functionName2 function will call the outside function named promiseReject which will return any syntactic error.

The problem and the following, console.log will display this message: problema na funcao 1 , but the reject was performed in the second function, so it would have to show problema na funcao 2 . I can not imagine what might be the reason, maybe you guys being more experienced can tell me.