diff --git a/classes/deck/deck_holder.gd b/classes/deck/deck_holder.gd
index 49e7ba8..a918eab 100644
--- a/classes/deck/deck_holder.gd
+++ b/classes/deck/deck_holder.gd
@@ -296,14 +296,23 @@ static func pre_exit_cleanup() -> void:
 static func send_event(event_name: StringName, event_data: Dictionary = {}) -> void:
 	for deck_id: String in decks:
 		if decks[deck_id] is Deck:
-			(decks[deck_id] as Deck).send_event(event_name, event_data)
+			var deck: Deck = (decks[deck_id] as Deck)
+			if not is_instance_valid(deck):
+				continue
+			deck.send_event(event_name, event_data)
 		else:
 			for deck_instance_id: String in decks[deck_id]:
-				(decks[deck_id][deck_instance_id] as Deck).send_event(event_name, event_data)
+				var deck: Deck = (decks[deck_id][deck_instance_id] as Deck)
+				if not is_instance_valid(deck):
+					continue
+				deck.send_event(event_name, event_data)
 	
 	for lib_group_id: String in lib_groups:
 		for lib_instance_id: String in lib_groups[lib_group_id]:
-			(lib_groups[lib_group_id][lib_instance_id] as Deck).send_event(event_name, event_data)
+			var deck: Deck = (lib_groups[lib_group_id][lib_instance_id] as Deck)
+			if not is_instance_valid(deck):
+				continue
+			deck.send_event(event_name, event_data)
 
 
 #region group signal callbacks