I've created an exploding barrel using kismet. When the barrel is shot, it explodes dealing damage. For the explosion effect I've set a particle effect as the broken template under the UDKActor Breakable. Now this is the problem, the explosion can only be seen on the host computer. Even though the damage works fine, other computers that has joined the host never sees the explosion effect go off, they still see an unexploded barrel.

How can I fix this?