Ok so this is almost a show stopper for me (almost).
The Blueprint node SetActorEnableCollision does not replicate correctly to clients. The server handles it fine. Any clients however cant decide if the Actor has collision or not and spaz out.
Ive tried everything i can think of to eliminate what the actual problem is and im pretty sure its the node not replicating correctly.
Above is a video that shows the collision issues. The Server changes the GameType which alters the Objectives Collision and HiddenInGame (Which you will notice has no issues replicating).