Tutorial fix

Assets/Darkmatter/Code/Features/Tutorial/Systems/TutorialDirector.cs

@@ -313,13 +313,16 @@ namespace Darkmatter.Features.Tutorial.Systems
 
         private static (RectTransform piece, RectTransform slot) FindFirstPieceAndSlot()
         {
+            // Pieces spawn in data order under one SpawnRoot, so sibling 0 is the top of the tray.
+            // FindObjectsByType returns undefined order — pick the lowest sibling index, not [0].
             var pieces = UnityEngine.Object.FindObjectsByType<ShapePiece>(FindObjectsSortMode.None);
             ShapePiece piece = null;
+            var bestIndex = int.MaxValue;
             foreach (var p in pieces)
             {
                 if (p == null || p.IsLocked || !p.gameObject.activeInHierarchy) continue;
-                piece = p;
-                break;
+                var index = p.transform.GetSiblingIndex();
+                if (index < bestIndex) { bestIndex = index; piece = p; }
             }
             if (piece == null) return (null, null);