Video related issues usually have to do with the web browser.

Here are a few things you can try that might help:

  1. Restart your computer.
  2. Refresh your browser's cache.
  3. Try and use a different browser.
  4. Double-check that your computer's audio is turned on.
  5. Double-check that the audio is turned up on the video player.

If you're still having trouble after doing these things you can submit a support request.

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