Playwright Launching two browser instances of Chromium

Hi
I am working with Playwright and sample script when executed, i found Playwright launches two instances of chromium
1 in incognito and other is normal

can someone help me on this

below is my conf

const { setHeadlessWhen,setWindowSize } = require('@codeceptjs/configure');

// turn on headless mode when running with HEADLESS=true environment variable

// HEADLESS=true npx codecept run

setHeadlessWhen(process.env.HEADLESS);

exports.config = {

  tests: './tests/*_test.js',

  timeout: 10000,

  output: './output',

  helpers: {

    Playwright: {

      url: '',

      show: true,

      browser: 'chromium',

      windowSize: '1900x1200',

      waitForNavigation: [ "domcontentloaded", "networkidle0" ]

    }

  },

  include: {

    I: './steps_file.js'

  },

  bootstrap: null,

  mocha: {},    

  name: 'Demo_Playwright',

  plugins: {

    retryFailedStep: {

      enabled: true

    },

    screenshotOnFail: {

      enabled: true

    },

    allure: {

      enabled: true

    }

  }

}