I have had the same issue for weeks. I am running the latest version of WDphotos and from my IPAD1 running OS5 I can see some of my folders but not all. Nothing has changed for weeks. I am not convinced that clearing the cache on the ipad actually does anything as when I am offline I see the same photos as when I am connect the MBL…a real shame as the app and NAS box would be awesome if this worked. I have a case open with WD support but its vry slow going…
cheers
Brian
