Particle Replication Using Multicast

Hey all, As the title suggests i'm having an issue with replicating a particle that will be displayed both on the server and to the client. I know there is many similar questions and I have gone over the unreal networking videos and understand the concept at least on a basic level. However for some reason it's still not functioning as required. Basically i'm trying to spawn the particle at hit location. Its just a default explosion for now since i'm still in the prototyping stage. In the picture attached you can see that i'm using space for quick testing and that simply calls a multicast event to spawn the particles. This blueprint is the character blueprint.

However when play testing and pressing space the server window does spawn the particle and the client sees that also. So my mind automatically thinks the multicast is working correctly. However when pressing space on the client, only the client can see the particle and not the server. I have tried using an authority switch:

Authority - Server spawns particle and both server and client can see it.However the client doesn't spawn anything Remote - Server spawns nothing and client spawns the particle only the client can see.

I have also tried the RunonServer replication to no avail. I'm really not seeing why it doesn't work and would be really grateful if I could be pointed in the right direction Thanks, Calcorso