When I'm editing the theme, I can set it to move automatically every 3sec and I see it working but when I preview the website, the slideshow gets terribly stuck.
Here is my website: https://i4za1mmv1a15ko8b-28529197131.shopifypreview.com
I did not edit the code.
Did you check the Auto-rotate slides checkbox under slider settings?? This should work well
In the Help Center they told me they saw it working, so it must be my pc or browser.
A day later I made some friends open the website on their computers and they didn't see it working (like me) so I gave up and I removed the slideshow
Sorry for not having a solution. I didn't expect my friends would see it stuck too.