When I play a Lan "world" with my friends or familiars I'm always the owner of this "world". When they join, the host sees the custom skin of the guests. When I type F5 I see my skin, but the guests do not see.
I think that this is bug that it has to be resolved because is bothering, and this bug has been spend a lot of time without resolved.
This is a nasty bug and game breaking. I can't play the game because of this. If it will not be fixed, i wont play anymore...