I changed data source to Joomla categories and Thumbnail image type to Use Joomla! Images, Thumbnail image type is Full Image and Create thumbnails is enabled.
But for some reason the thumbnail don't show.
If I set Thumbnail image type to use first article Images the thumb will show but clicking a link offcourse makes the thumnail appear on top of the page so that's no option.
Can you provide me the solution to solve this please?