I appeared to have lost all add-ons on an account too. I looked at that and thought sarcastically...fantastic...now a battle to get things back. Then they re-appeared. The site is still in flux. Maybe try a different browser or device or use incognito mode.
Did you per chance, have a saved screenshot of the data that's missing ? Otherwise..I'm certain the CSA can make things right for you once these update issue settle out.
