I recently got my name changed and I had a look at the other post about this and it said to wait a few hours and try again but I've waited about 12 and still nothing, help anyone?
I am not really sure, I guess the only way to fix this is through changing your name back to the old name.
This happened to me when I changed my name a few days ago. Just give it a few hours and you will be able to log in again.
Oh I found the solution (maybe)! Open Minecraft and click on switch user. Then try logging back in and see if that works.
