Autoplay not working

Hi all.

While watching a sequence of lecture videos for CS241, I toggled on the 'Autoplay' setting but did not see any sort of autoplay occurring once the video ended. Is there something else I need to do to enable autoplay? I wanted to report this behavior in case anyone else was experiencing it, and I'm happy to provide more information if needed.

Thanks!

Note: This issue was [originally posted](https://github.com/cs-education/classTranscribe/issues/142) on `cs-education/classTranscribe` but I'm moving it here since that repo looks archived.