Have you tried rebooting?
Odd, can't say I've come across this on any of the iOS devices I've used.Yup, multiple times. I even removed all the music and photos from my ipad, hoping it might be a corrupted DB.. Still doing it.
That's strange, I wonder why it might take so long. Certainly hasn't been like that on 16 GB or 32 GB devices I've used recently and in the past.How long have you waited for it to finish. I just timed mine, and my General/Usage screen took a full 2 minutes to load everything on my 16Gb iPhone with 10GB used, I would imagine 64GB would take longer....