I'm using version 4.4.11 on a DNS-323, and, when viewing the photos node on the Xbox 360, when I go into the Photo tree and then to the Folders node, the Xbox only shows 12 folders. If I go back to the All Photos node of the Photo tree, I see all the photos. Similarly, all the photos are viewable when going through the Year > Month node.
Now, when accessing the Photo tree Folders node on my Mac Mini, it shows all the folders, not just the 12 that the Xbox shows, so I know it's something specific to the Xbox.
In Twonky's setup, I tried changing the Xbox 360 client from XBOX 360 to Generic Media Receiver, but it seemed to make no difference.
Any ideas?