BUG - Friend Name Change

This is my first time reporting a bug so i hope i didn't mess up anything. In short this bug occurs when one of your friends changes their names and the game fails to register it, i'm not sure if it's on the client side or in-game but either way since your friend has a new name and the old one is gone and it still counts them with their old name the account is considered non-existent and you can't invite them or view their profile. This happened to me on EU Nordic East. I fixed the issue with just speaking to them, getting their new name and then removing and re-adding them. I hope this is of help to anyone experiencing this issue as well.