Ugh - gallery image sequence spontaneously changed!
I have a gallery containing over 3,000 images which I have progressively build up over ten years (my daily blog, link below). The gallery sequence is set to "manual". Moments ago, after moving the location of one image (only one, I'm certain) in the organiser and clicking "done", my gallery is now in a completely unrecognisable sequence.
SmugMug has had a hiccup. If the gallery contained only a few images, the implications would be trivial. However, now I have chaos! How can I roll back to the previous (correct) sequence? What other options do I have?