Unable to take screenshot with allure when using multiremote feature

Unable to have screenshot from the failed test when using combination of browserstack/appium and selenium stand alone services

Environment (please complete the following information):

• WebdriverIO version: 6.6.4
• Mode: multiremote feature
• If WDIO Testrunner, running sync/async: sync
• Node.js version: 12.18.0
• NPM version: 6.14.4
• Browser name and version: chrome
• Platform name and version: win10 + BS
• Additional wdio packages used (if applicable):

"dependencies": {
  "@wdio/browserstack-service": "^6.6.3",
  "@wdio/cli": "^6.6.4",
  "eslint": "^7.11.0",
  "frisby": "^2.1.3",
  "wdio-chromedriver-service": "^6.0.4",
  "webdriverio": "^6.6.4"
},
"devDependencies": {
  "@wdio/allure-reporter": "^6.6.3",
  "@wdio/appium-service": "^6.6.3",
  "@wdio/dot-reporter": "^6.6.0",
  "@wdio/local-runner": "^6.6.4",
  "@wdio/mocha-framework": "^6.6.3",
  "@wdio/selenium-standalone-service": "^6.6.5",
  "@wdio/spec-reporter": "^6.6.3",
  "@wdio/sync": "^6.6.4",
  "@wdio/concise-reporter": "^6.6.0",
  "chai": "^4.2.0",
  "mocha": "^8.1.3"
}

Config of WebdriverIO

services: [
  ['selenium-standalone', {
      args: {
        seleniumArgs: ['-port', '4444']
      },
  }],  
  ['browserstack'],
  // ['appium',{
  //   command : 'appium',
  //   args: {
  //       debugLogSpacing: true,
  //       sessionOverride: true,
  //       port: 4728,
  //       allowInsecure:'chromedriver_autodownload'
  //   },
  // }]
],
 afterTest: function(test, context, { error, result, duration, passed, retries }) {
        if (error !== undefined) {
            browser.takeScreenshot();
          }
    },

    reporters: ['dot','spec',['allure', {
        outputDir: 'allure-results',
        disableWebdriverStepsReporting: true,
        disableWebdriverScreenshotsReporting: false,
        disableMochaHooks: true
    }]],

Describe the bug Unable to take screenshot for failed test when using multiremote feature

To Reproduce Steps to reproduce the behavior: use multi-remote feature with broswerstack/appium and selenium

Expected behavior Screenshot should be taken either from Browser or mobile app once test is failing

[christian-bromann]

Thank you @hieuxlu … love all these great fixes on the multiremote side 👏

[christian-bromann]

Hey, thanks for filing the issue. This seems indeed like bug. We would appreciate any help on this so please help us out! Have a look at our contributing guidelines and reach out if you have any questions. Cheers!