GK News Blocks - data source

Hi guys,

Struggling to get my GK News Blocks to display at all. The heading is there, but none of the content, so I'm assuming I'm making an error with the data source settings.
I've used a category slug that does exist and has 5 posts in it, but nothing's showing (if I set it to latest posts only the heading shows too) .. what am I doing wrong?

http://www.darkcarnival.co.za/

Hi,

I can't see your website - the maintenance mode is enabled.
Did you add featured images to your posts from used category?

Yes, all the posts in that category slug have have featured images.
I have to keep the site hidden as it's behind a live site but I can create a login for you?

ah - not to worry, figured it out ... it ONLY works if you order by ID. Ordering by Date or anything else results in blank blocks.
I have a question about something else but I'll start a new thread about that