First Showcase Video slide does not play

When first showcase slide is a video slide the video does not start playing (autoplay)

This is because chrome has updated its video autoplay policies:

https://developers.google.com/web/updates/2017/09/autoplay-policy-changes

However the muted video is always allowed to autoplay. If you don't need sound, the solution is very simple. Open showcase-page.php and change line 95 from

<video autoplay loop id="bgvid"></video>

to

<video autoplay loop muted id="bgvid"></video>

Otherwise you need to check the promise object and display a play button in case the browser does not autoplay the video. See 'Best practices for web developers' in the above mentioned link.