Multiplayer all Clients are Client 0

[Roblll (Rob)]

Copy paste of this topic, but I can’t react on that one, so re-opening it in a different thread.

Multiplayer all Clients are Client 0?

Using print string in for example character bp, when running 2 clients with server in background. Netmode is client that is. Strings showing on the screen are prefixed with server and client #number. But i am getting only server and all other clients are client 0?? i can have 3 clients, and i will get the print string once from server and all other are from client 0? What am i missing? before it would write out client 0, 1, 2…depending om how many.

If the solution accepted is true, isn’t that a bug?

[Auran131 (Auran13)]

clients dont know about other clients so they are always 0

only the server will have the correct references

[Roblll (Rob)]

I’m talking about PIE.

When I start a PIE session with 2 clients, when I print the “PlayerName” from the controller, in my EDITOR window (client0) I see messages;

Client 0: Client0Identifier
Client 0: Client1Identifier

In my 2nd client window (client 1) I see the following:

Client 0: Client0Identifier
Client 0: Client1Identifier

I would expect to either see “Client1Identifier” in the window of client1, or see Client 1 and Client 0 prefixed properly…

[Rev0verDrive]

Testing this on 5.1 and 5.2 builds I get the proper Client 1, Client 2 and Server prints.

PrintString in Character class
With just a print (no conditions) I get the following (expected behavior).

With conditions (local role = Autonomous)…

---

Colored coded version

• Client (Autonomous Proxy)
• Server (Authoritative Proxy)
• Sim (Simulated Proxy)

[GarnerP57]

Yes it is a bug that was introduced in 5.3

[Roblll (Rob)]

So you’re seeing this Client0 behaviour in 5.3 too? Thanks for the reproduction, looks like it works as expected in 5.1 and 5.2.

[GarnerP57]

It was caused when they changed the type of GPlayInEditorID from int32 to a struct FPlayInEditorID in 5.3

FString::Printf(TEXT("Client %d: "), GPlayInEditorID)

won’t work properly.

FString::Printf(TEXT("Client %d: "), static_cast<int32>(GPlayInEditorID))

Explicitly converting it to int32 works though.

[IncantaGames]

Thanks for this! Looks like ue5-main GH branch has a fix for this, so I envision this should work again in 5.5 (my guess is a patch release won’t go out for this).