Fukasawa – change the order of images in a post

Hello Anders, many thanks for the Fukasawa Theme that I use in version 1.17 with a child theme and WP 5.2.4. Unfortunately, I have not found a solution yet to change the order of images in a post (post format “gallery”). They are always displayed in the order of the ID or in the order of the upload date and time. Whether I change the order of images in the text editor, in the visual editor, or in the embedded gallery (“edit gallery”), the orinaly order is unchangeable – where can I change the order of the images in the image-slider, as it is usually possible in the WordPress gallery ?