Context conflict when starting unlighthouse twice for mobile and desktop

[BennyAlex]

Describe the bug

I first run a desktop test, wich works fine, but when I want to start a second test for mobile I get this error:

file:///C:/Users/benny/work/lighthouse/node_modules/unctx/dist/index.mjs:6
      throw new Error("Context conflict");
            ^

Error: Context conflict

Any way to prevent this error or is it a bug?

Reproduction

export async function performTest(site, urls, device = 'desktop') {
  return new Promise(async (resolve, reject) => {
    const unlighthouse = await createUnlighthouse({
        site,
        urls,
        lighthouseOptions: {
          onlyCategories: ['performance', 'best-practices', 'accessibility', 'seo', 'pwa'],
        },
        puppeteerOptions: {
          args: ["--no-sandbox"],
          headless: true // headless works best,
        },
        server: {
          open: false
        },
        /* puppeteerCluster: {
             concurrency: 'CONCURRENCY_BROWSER', // which mode to use
             maxConcurrency: 1,
         },*/
        output: {
          json: true, // output json
          html: global.isDev // output html
        },
        debug: global.isDev, // output debug info
        cache: false, // disable caching of results
        scanner: {
          dynamicSampling: false, // no dynamic sampling
          maxRoutes: 100000, // max number of routes to scan
          samples: 1, // number of samples to take, higher does not work correctly currently
          crawler: false, // enable the crawler
          robotsTxt: false, // don't respect robots.txt
          sitemap: false, // don't respect sitemap.xml,
          skipJavascript: false, // don't skip javascript
          // exclude all pdfs and amp pages
          /*        exclude: [
                    '/.*?pdf',
                    '.*!/amp',
                    /!* 'en-*',*!/
                  ],*/
          // use desktop to scan
          device: device,
          // enable the throttling mode, good for getting more consistent results
          throttle: !global.isDev,
        },
        chrome: {
          useSystem: false // use the bundled chrome,
        }
      },
      {
        name: 'unlighthouse-provider-' + device,
      });
    
    const two_min = 2000 * 60;
    const timeOut = two_min + (urls.length * two_min);
    
    const timeout = setTimeout(() => {
      console.error('Maximum Timeout reached!');
      reject('Maximum Timeout reached!');
    }, timeOut);
    
    const {hooks} = unlighthouse;
    
    // listen to the worker-finished event
    hooks.hook('worker-finished', () => {
      console.log('All sites for ' + device + ' tested!');
      clearTimeout(timeout);
      resolve();
    });
    
    console.log('starting unlighthouse for', device);
    await unlighthouse.start(); // start the unlighthouse process, will not wait for it to finish, use hooks instead
  });
}

System / Nuxt Info

No response

[BennyAlex]

@harlan-zw