Fix puzzle unlock issues

Assets/Scripts/PuzzleS/PuzzleManager.cs

@@ -60,6 +60,10 @@ namespace PuzzleS
 
         private void OnSceneLoaded(Scene scene, LoadSceneMode mode)
         {
+            SceneManager.sceneLoaded -= OnSceneLoaded;
+            
+            Debug.Log("[MDPI] OnSceneLoaded");
+            _runtimeDependencies.Clear();
             BuildRuntimeDependencies();
             UnlockInitialSteps();
         }
@@ -74,6 +78,14 @@ namespace PuzzleS
             if (!_stepBehaviours.ContainsKey(behaviour.stepData))
             {
                 _stepBehaviours.Add(behaviour.stepData, behaviour);
+                _runtimeDependencies.Clear();
+                foreach (var step in _stepBehaviours.Values)
+                {
+                    step.LockStep();
+                }
+                _unlockedSteps.Clear();
+                BuildRuntimeDependencies();
+                UnlockInitialSteps();
                 Debug.Log($"[Puzzles] Registered step: {behaviour.stepData.stepId} on {behaviour.gameObject.name}");
             }
         }
@@ -196,8 +208,9 @@ namespace PuzzleS
         /// </summary>
         public bool IsStepUnlocked(PuzzleStepSO step)
         {
-            BuildRuntimeDependencies();
-            UnlockInitialSteps();
+            // _runtimeDependencies.Clear();
+            // BuildRuntimeDependencies();
+            // UnlockInitialSteps();
             return _unlockedSteps.Contains(step);
         }