Account Nickname reverting to Account Number

Not the biggest problem in the world, but this morning I noticed that my Live account no longer has a nickname and is merely “named” with the account number. Rebooted, no change. Went to the Dashboard and updated the Nickname, but even though it said it was applied, nothing happened.

Is there some resolution that presently escapes me? Has NT removed this option for some reason?

Went away the next day without intervention. Much ado about nothing…apologies