Google Chrome’s autoplay policies have changed as of November 2019. This change affects layout previews that contain videos. Please follow the steps below to switch this feature back on in your Google Chrome browser.
1) Right-click on the Google Chrome icon on your desktop and select ‘Properties‘.
2) Copy and Paste the following after the Target text (do not replace the target text):
3) Click ‘Apply‘ and ‘OK’ to save.
4) Restart your Chrome browser.
Previews should play videos automatically.