formatjs/intl-datetimeformat with en-MY missing am/pm

index.js

require('@formatjs/intl-datetimeformat/polyfill-force');
require('@formatjs/intl-datetimeformat/locale-data/en');
require('@formatjs/intl-datetimeformat/locale-data/en-MY');
require('@formatjs/intl-datetimeformat/add-all-tz');

var date = new Date(Date.UTC(2020, 1, 1, 10, 10, 10, 0));
var format = new Intl.DateTimeFormat('en-MY', {
  year: 'numeric',
  month: 'short',
  day: '2-digit',
  hour: '2-digit',
  minute: '2-digit',
  second: '2-digit',
  calendar: 'gregory',
  hour12: true,
  hourCycle: 'h12',
  localeMatcher: 'lookup',
  formatMatcher: 'best fit',
  timeZone: 'Asia/Kuala_Lumpur',
});

console.log(format.format(date));

output

01 Feb 2020, 06:10:10

package.json

{
  "dependencies": {
    "@formatjs/intl-datetimeformat": "^2.8.1"
  }
}