On the site

After the module is published and assigned, open that page like a visitor.

Checklist

1. Status is Published, Position is correct, and Menu Assignment matches the page.
2. At least one slide has a real image.
3. Clear Joomla cache, then hard-refresh (Ctrl+F5).
4. Focus the slideshow and use the arrow keys. On a phone, swipe.

Live demo variants

The public hub at demo.joomlax.com/demo/utilities/diapo-slideshow includes Overlay, Split, Stacked, Folder, and Articles.

Several modules on one page

Each instance uses its own root id (diapo-{moduleId}). Two slideshows on one page run independently.