Hello. I’m experiencing an annoying glitch in which I changed my gamertag, but it still registers my old one. My new gamertag is Im Kuya, but it says my stats and everything are zero, recruit, etc., and an error pops up when I attempt custom challenges. Yet I can search for my old gamertag and all my stats are on there and have not carried over. It’s weird as it seems Halo Waypoint created a new profile just for this gamertag, but I can sign in with the information from my old gamertag. I am not posting my old gamertag as it is racist. Any ideas on why this is happening?
It will take some time for the transition to occur. Nothing you can really do besides wait! 
Same thing happened to me when I changed my tag, it eventually restored everything though and my name changed.
Just give it time.
How long does this usually take? I changed my gamertag over a month ago.
> How long does this usually take? I changed my gamertag over a month ago.
… HUH.
PM bs angel about it and see if she can help you!