I changed my Stack Exchange user profile and chose option copy from Stack Overflow, but it has not changed my profile.
I discussed it on tavern-on-the-meta and two users also confirmed that.
I got a suggestion on the Tavern discussion:
Maybe it takes time for all servers to pick up the change. Give it 6 to 8 hours.
It's more than 12 hour as I write this, but I still see my old profile.