How to scrape images on slider

How to?
#1

Describe the problem.
Hello, I am new using Web Scraper, I am trying to scrape the images from this directory , images are on an slider
What Ive tried :

Type: image
Selector: div.photo-slider > slick-slide > a img
Multiple

Type:Grouped
.slick-current a img
Attribute name: src
(this one extract one url)

Type: image
Selector: div:nth-of-type(n+7) [data-lightbox] img
Mutiple
this one , in data preview, shows all the url of the images, but when I hit export, it does not export the images, only the ulr of the webpage duplicated several times.

Url: Linda casa frente a Parque del Cafe Rohrmoser | 3 Recamaras por 375000.00 en Rohrmoser

Sitemap:
{"_id":"encuentra24testimagenes","startUrl":["Anuncios Clasificados | Encuentra24.com a img","extractAttribute":"src"}]}

#2

@husker Hi, try using 'Grouped' selector - div.gallery-background .slick-slide:not(.slick-cloned) a with an 'Attribue name' - href.

#3

Hello, Ive tried but i get this result:
[{"img":"","img-href":null},{"img":"","img-href":null},{"img":"","img-href":null},{"img":"","img-href":null},{"img":"","img-href":null},{"img":"","img-href":null},{"img":"","img-href":null},{"img":"","img-href":null},{"img":"","img-href":null},{"img":"","img-href":null},{"img":"","img-href":null},{"img":"","img-href":null},{"img":"","img-href":null},{"img":"","img-href":null},{"img":"","img-href":null}]

not sure if i am doing something wrong