Help! I’m having the same issue – the WordPress 3.5 gallery (besides being impossible to use drag and drop productively on a small screen) just refuses to display the newly added images in the order that I drag and drop them into. No matter what happens the new images still just sit right at the top of the gallery! I have tried changing all of the params like orderby=”x”, and tried re-ordering and even removing the image ID’s added by the 3.5 gallery editor.
For reference the gallery in question can be seen here: https://beauoverlookcottage.com/photos. The issue is with those first 8 images in the gallery, no matter where I move them, they just stay in that same position. The rest of the images were re-orded successfully in a previous WP version, and continue to stay that way, as all new images are just added to the top of the gallery.
Thanks for any help!