Featured Slider: Defining follow up of posts

Hi, The posts (images) in the Featured Slider on my homepage https://spotonlichtontwerp.nl don't show in the follow-up I would like it to have. It looks like the posts are shown depending on the moment these are written. Changing the publication date doesn't help to change the order of appearance. My settings in Featured Slider are as follows: Enable on: homepage/front page Select layout: 1 column Boxes Display nav arrows, Display nav dots, Autoplay and Loop (Last to first) are all ticked Transition time out: 4 Transition length: 0 Select slider type: category No of slides: 10 Display content: hide content Display meta: hide meta Select categories: all categories How can I define a custom follow-up of the posts? Regards, Paulo