The shortcode I am using attempts to take posts from the "news" category, ID 240:
[gknsp widget_css_suffix="separator overlay" offset="4" article_cols="3" article_rows="1" data_source_type="wp-category" wp_category_list="news" article_image_w="380" article_image_h="204" article_image_order="1" article_image_popup="off" article_title_order="2" article_info_state="off" article_block_padding="0 7px 64px 7px" image_block_padding="0 0 40px 0" article_text_len="6"]
wp_category_list="240" also doesn't work.
There are more than 3 articles in the category, so it should work, but instead I get a warning:
Warning! There is no posts to display. Please check your widget settings
