diff --git a/addons/transition_configurator/config_dialog.gd b/addons/transition_configurator/config_dialog.gd
index b8b63e9..625a5f9 100644
--- a/addons/transition_configurator/config_dialog.gd
+++ b/addons/transition_configurator/config_dialog.gd
@@ -205,10 +205,22 @@ func _validate_selection() -> void:
 		status_label.text = "Please select an arrival point"
 		return
 	
-	var arrival_data = arrival_list.get_item_metadata(arrival_idx[0])
-	if arrival_data == null or typeof(arrival_data) != TYPE_DICTIONARY:
+	# Check if the selected arrival item is disabled (e.g., "No TransitionPieces found")
+	if arrival_list.is_item_disabled(arrival_idx[0]):
 		apply_button.disabled = true
-		status_label.text = "Invalid arrival point selected"
+		status_label.text = "Please select a valid arrival point"
+		return
+	
+	var arrival_data = arrival_list.get_item_metadata(arrival_idx[0])
+	print("DEBUG: arrival_data = ", arrival_data, " type = ", typeof(arrival_data))
+	if arrival_data == null:
+		apply_button.disabled = true
+		status_label.text = "No arrival point data (null)"
+		return
+	
+	if typeof(arrival_data) != TYPE_DICTIONARY:
+		apply_button.disabled = true
+		status_label.text = "Invalid arrival point data type: " + str(typeof(arrival_data))
 		return
 	
 	apply_button.disabled = false