If you are using the Edge browser on a Windows device and our user testing tool has trouble accessing your camera or microphone then this could be because you've disabled access to it in your browser settings.
Copy and paste both links below in your Chrome address bar. Note those links will only work if you're currently using the Chrome browser.
Make sure `https://marvelapp.com` is in the `Allow` list. If you see it in the `Block` list click the bin icon next to it.