Hi! I see you're having trouble with Whatnot streams showing a black screen with no sound, while the chat is still visible. Let's get to the bottom of this together.

First, can you tell me if this issue happens with all streams or just specific ones? Also, have you tried refreshing the page or restarting the app before seeing this problem? Knowing what you’ve tried will help me provide the best next steps.

Meanwhile, here are some common steps to try for Whatnot streaming issues on your Windows device using WebKit:

1. Refresh or Restart: Refresh the webpage or close and reopen the Whatnot app/browser. This can clear temporary glitches.

2. Clear Cache and Cookies: Sometimes stored cache or cookies cause video playback issues. On Windows with WebKit-based browsers, go to browser settings > Privacy > Clear browsing data (cache and cookies), then restart the browser.

3. Check Browser and OS Updates: Ensure your browser and Windows 10 system are fully updated; outdated software can cause playback problems.

4. Disable Browser Extensions: Some extensions interfere with video streaming. Try disabling them temporarily and see if the stream plays.

5. Check Permissions: Make sure your browser has permission to play sound and display video from Whatnot.

6. Network Connection: A slow or unstable internet connection may cause streaming issues. Running a speed test can help diagnose this.

If you’ve tried these already, let me know what’s been done so far, and we can look into more advanced fixes, like checking specific application settings or network configurations.

Would you like me to walk you step-by-step through any of the above? Also, please let me know if this is happening only on your Windows device or on others too.

Looking forward to helping you get back to smooth streaming!