Unable to run in parallel with Protractor 6 and shardTestFiles: true #5232

const path = process.cwd();
module.exports = {
	seleniumAddress: 'http://localhost:4444/wd/hub',
	framework: 'custom',
	frameworkPath: require.resolve('protractor-cucumber-framework'),

	specs: [ `${path}/features/**/*.feature` ],

	capabilities: {
		browserName: 'chrome',
		'chromeOptions': {
			'args': ['--headless', '--disable-gpu', '--disable-extensions', '--no-sandbox']
		},
		shardTestFiles: true,
		maxInstances: 2
	},
};

  const maxConcurrentTasks = scheduler.maxConcurrentTasks();
  const taskArray = [];
  for (let i = 0; i < maxConcurrentTasks; ++i) {
    taskArray.push(createNextTaskRunner());
  }
  await Promise.all(taskArray);
  logger.info('Running ' + scheduler.countActiveTasks() + ' instances of WebDriver');