After a game, friendlist becomes bugged and unusable

This annoying bug tends to happen to a lot of people as well, and it's usually random. Sometimes you'd play 3+ games without it happening, and sometimes it happens after a single game.

Icons don't load and the friendlist becomes unusable. If you click on anyone, nothing happens, and you don't receive messages either. Relogging in fixes it.

Please fix this already, it's been in the client since about 2 patches.