Fix RPC call while not connected

copyMultiplayer.gd

@@ -254,7 +254,8 @@ func on_model_changed(model: Node) -> void:
 	await get_tree().process_frame
 	var filename = main_controller._last_loaded_vrm.get_file()
 
-	change_model.rpc(version, bone_lookup, blendshape_lookup, filename)
+	if multiplayer.get_peers().size() > 1:
+		change_model.rpc(version, bone_lookup, blendshape_lookup, filename)
 
 
 ## Gets the SyncController for the player with the specified peer id.