sebigyuri I can confirm this issue, it due to combination of this template style and module style.
By default, this module is not used in template so we've not been aware of this issue. Thanks for your report 🙂
You can try this step to resolve the issue:
1-- Go to Backend >> Template styles >> open the template style that you're using >> Layout settings >> look at the slideshow section and switch the palettes to None instead of 'Dark' palette
2-- Next, when you use JA Slideshow Lite with 'Fade' style, it adds a class called 'fade' to the slide item but accidentally, the template has style for this 'fade' class with opacity so you don't see images of slideshow. You can add this custom CSS:
.ja-ss-wrap.fade {
opacity: 1 !important;
}
into the file: /templates/ja_landscape/css/custom.css (Create this file if it doesn't exist)
Then clear all caches.