I've downloaded the YouTube hero demo Slider Revolution.
On my home page, when I either run the exact demo slider, or my modified slider. When I preview the slider the video plays correctly, but on my live site, the slider video does not play. It just shows the YouTube video image.
Do you know what I need to do to get the slider to perform on my site like it does in the preview (video to play)?
My site: https://www.topview.co.nz/
X theme is up to date.
Slider revolution is up to date:
Slider Revolution - Premium responsive slider
Version 220.127.116.11 | By ThemePunch | Visit plugin site
WordPress 4.9.10 running X theme.