Currently, Myself and some other players are currently unable to get the Latest save data in the Cloud, preventing players from playing Elder scrolls Online: Tamriel Unlimited amongst the many other game titles, this is only temporary but frustrating to say the least.
For more details, be sure to check the Xbox LIVE service status here:
https://support.xbox.com/en-AU/xbox-live-status
If you see me anywhere. Know that I am sitting back with a bag of popcorn, watching as ESO burns the goodwill of its player base with practices that only disrespects the players time like it did to me and many others...
If a game does not respect your time, best thing to do is move on from it and find something else.