I have a Lumia 1020, which is on the latest build however im not receiving 10586.63, I have exited and rejoined the fast ring on the app to see if that fixes it and it hasn't?
I'm on a Lumia Icon and every time my phone starts to update to 63 it 'hangs' at 4%. Sometimes it'll tell me I'm roaming when I'm not and the download won't start. Then when it says the update is available again I start the dl and it hangs at 4% again.