Thanks for your patience and understanding with this autoplay issue.
Unfortunately, Google has shipped an update to prevent Autoplay from being activated on websites in Chrome.
The new default in Chrome is to prevent autoplay from working in websites. For now, you can workaround this by changing your default settings by visiting this page in Chrome settings: chrome://flags/#autoplay-policy
Then switching your browser autoplay settings from “default” to “no user gesture is required.”
Our team is working on a way to counteract this Chrome update, as clicking on a lightbox should be enough user interaction to play the video.
I’ll update this post as soon as I have more information or when the team has a solution.