Нашёл причину утечки памяти

Assets/Code/Infrastructure/UI/Panels/LoadingPanel.cs

@@ -17,7 +17,7 @@ namespace Code.Infrastructure.UI.Panels
             Tween.Color(image,shownColor, 1f).OnComplete(FireOpenedEvent); 
         }
 
-        public override void Close()
+        public override void Close(Action callback = null)
         {
             Tween.Color(image,hiddenColor, 1f).OnComplete(FireClosedEvent); 
         }