diff --git a/addons/godot_rl_agents/sync.gd b/addons/godot_rl_agents/sync.gd
index 8428976..44f51d8 100644
--- a/addons/godot_rl_agents/sync.gd
+++ b/addons/godot_rl_agents/sync.gd
@@ -62,7 +62,9 @@ var _obs_space_training: Array[Dictionary] = []
 
 # Called when the node enters the scene tree for the first time.
 func _ready():
-	await get_parent().ready
+	var parent := get_parent()
+	if not parent.is_node_ready():
+		await parent.ready
 	get_tree().set_pause(true)
 	_initialize()
 	await get_tree().create_timer(1.0).timeout