[CLIENT] Can't block certain trolls in post game lobby. New Issue / Hack

This brand new issue prevents me from blocking players in the post game lobby.

The option for certain players is gray, and I cannot select the block option. See Image.

http://i.imgur.com/CwpLBdT.jpg

• The player is NOT already blocked.

• Other players can still be blocked.

• Blocked players display checkmark icon next to their name as always.

• Troll can still be blocked outside of post game lobby, manually entering name