Activision Name not updating

I changed my activision name and now when I go to a match and see all the players that were in my squad and go to click on my name it says stats not found and shows my old name. Is there a way to get it updated so my stats show when me or someone tries to look them up from a recent match. My new name is Ayced#7961151 and you can look me up but if you go to any one my recent matches and click on my name to pull up my life time stats it shows my old username and says stats not found.

have you tried unlinking your Call of Duty account from “Linked Accounts” and then reconnecting It?