Issue with Multicast Event Not Triggering for All Clients in Listen Server Multiplayer Shooter Game

Development Programming & Scripting Multiplayer & Networking
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1

I’m developing a multiplayer shooter game using the Advanced Locomotion System in UE5. When I execute the Shoot event, the Shoot(Fire)_Server event runs on the server, which then triggers the Shoot(Fire)_MultiCast event.

However, I am encountering an issue: when the server (Client0) executes the Shoot event, the Shoot_Server function runs, and subsequently, the Shoot_MultiCast event is executed for all clients, including the server. On the other hand, when a client executes the Shoot event, the Shoot_Server function runs, but the Shoot_MultiCast event only executes on that specific client and does not trigger for any other clients or the server (Client0).

What could be causing this behavior? I would appreciate detailed insights into why this is happening and how I can resolve this issue.

2

Could be your control flow logic. Post your code.

Client Shoot → calls server to shoot from owning client (Character, Controller, or owned attach actor/component)

Server RPC receives → calls Multicast → MC logic

On listen servers, Client 0 is also the server.