Touch() on FluidSurfaceActor doesn't work for dedicated server

I’ve noticed something strange with my FluidSurfaceActor (unmodified): When I fire projectiles into it (in single player or as a listen host) the Touch() event fires, however as a dedicated server the event never occurs.

Has anyone experienced this or know why it may not be working? Cheers.

Edit: I’ve just checked and it seems traces also don’t seem to work on a dedicated server for FluidSurfaceActors.