Having Trouble Updating Information on Server (PlayerState)

Hey! Thanks for stopping by my thread.

I am setting the UserName of people in my multiplayer game by using a text box from a widget and then sending it to the PlayerState.

The problem is that the first person who loads in (Client 1) can shoot the other person (Client 2, who loaded in secondly) and it will just say that Client 1 killed Client 1

However, when Client 2 (who loaded in second) shoots Client 1 (who loaded in first), it will say that Client 2 killed Client 1. I feel like the problem is that the information of the second player’s name is not being updated on Client 1.

Here is an album : http://imgur.com/a/JmE4L

Thank you!

Any help on this?