Customer device not updated (Multiplayer)

[shitygamesofficial]

Godot Version

Godot Engine v4.2.2.stable.official.15073afe3 - https://godotengine.org

Question

I’m making a multiplayer game and I’ve put a button so that the admin player can restart the game, but the client doesn’t restart the game and receives errors that I can’t figure out, what am I doing wrong?:

func _on_start_again_pressed():
	start_again.rpc()
	
@rpc("any_peer", "call_local")
func start_again():
	var scene = load("res://Menues/Games/Online/Party/party.tscn").instantiate()
	for i in get_tree().root.get_children():
		if i.name == "Game":
			i.start_game()
	self.queue_free()

func start_game():
	var scene = load("res://Menues/Games/Online/Party/party.tscn").instantiate()
	#get_tree().root.add_child(scene)
	add_child(scene)
	Transition.transition_ms.play("Start")
	if lobby != null:
		lobby.queue_free()

[herrspaten]

Can you show the scene-tree of your party.tscn?

[shitygamesofficial]

[herrspaten]

try to do add_child but with force_readable_name:

add_child(scene, true)

The synchronizer needs the same path for every client, so you have to give the parents of the synchronizer a readable_name so its equal on all clients

[shitygamesofficial]

Now only the client is updated, and has an error:
“get_cached_object: ID 2 not found in cache of peer 1.”

[herrspaten]

is it a game-breaking error?

[shitygamesofficial]

no, it’s repeated as long as the game is running

[herrspaten]

And what do you mean by “only the client is updated”?

[shitygamesofficial]

Only the client seems to instantiate the new scene, and the server doesn’t move visually. I added print(multiplayer.get_unique_id()) in start_game() and start_again() . So normally the output should show the server and client id twice, but it shows the server id once and the client id three times.

[shitygamesofficial]

This code works:

func _on_start_again_pressed():
	start_again.rpc()
	
@rpc("any_peer", "call_local")
func start_again():
	var scene = load("res://Menues/Games/Online/Party/party.tscn").instantiate()
	#for i in get_tree().root.get_children():
		#if i.name == "Game":
			#i.start_game()
	self.add_sibling(scene, true)
	self.queue_free()

But to really correct the problem, my upnp function was not called up.
Thanks for your help !
Thanks to you, I’ve discovered the add_chile and add_sibling function options.