Why are the videos autoplaying muted with closed captions? How can I fix this?
This is most likely due to the new browser protocols that auto-mute videos to prevent videos ads from being so intrusive. When the sound is disabled, the closed captioning will automatically turn on so that you can still follow along with the video.
You can allow the Amber Book videos to autoplay with sound (and without closed captioning) by whitelisting the course website on your browser. Instructions on how to whitelist sites in Chrome, Firefox, and Safari can be found here.