Bootstrap Version Conflicts
The carousel is built for Bootstrap 3. Themes shipping Bootstrap 4 or 5 use a different, incompatible carousel API.
Something not working as expected? These guides fix the most common issues – a carousel that will not slide, blank or missing slide images, missing arrows or dots, slides vanishing on save, and Bootstrap version conflicts.
The carousel is built for Bootstrap 3. Themes shipping Bootstrap 4 or 5 use a different, incompatible carousel API.
Losing slides from a large carousel when you save is usually PHP rejecting the request because Max Input Vars is too low.
If the navigation arrows or dot indicators do not appear, check the General settings where they can be turned off.
Empty slides on a Posts-source carousel usually mean the post or product has no featured image set.
If your carousel shows the first image but never advances, the theme is most likely not loading Bootstrap JavaScript.