diff --git a/Il2CppInterop.Runtime/InteropTypes/Il2CppObjectBase.cs b/Il2CppInterop.Runtime/InteropTypes/Il2CppObjectBase.cs
index ef7c40e4..8c73caaf 100644
--- a/Il2CppInterop.Runtime/InteropTypes/Il2CppObjectBase.cs
+++ b/Il2CppInterop.Runtime/InteropTypes/Il2CppObjectBase.cs
@@ -82,10 +82,10 @@ public T Unbox<T>() where T : unmanaged
     }
 
     private static readonly Type[] _intPtrTypeArray = { typeof(IntPtr) };
-    private static readonly MethodInfo _getUninitializedObject = typeof(RuntimeHelpers).GetMethod(nameof(RuntimeHelpers.GetUninitializedObject))!;
+    private static readonly MethodInfo _getUninitializedObject = typeof(RuntimeHelpers).GetMethod(nameof(FormatterServices.GetUninitializedObject))!;
     private static readonly MethodInfo _getTypeFromHandle = typeof(Type).GetMethod(nameof(Type.GetTypeFromHandle))!;
-    private static readonly MethodInfo _createGCHandle = typeof(Il2CppObjectBase).GetMethod(nameof(CreateGCHandle))!;
-    private static readonly FieldInfo _isWrapped = typeof(Il2CppObjectBase).GetField(nameof(isWrapped))!;
+    private static readonly MethodInfo _createGCHandle = typeof(Il2CppObjectBase).GetMethod(nameof(CreateGCHandle), BindingFlags.Instance | BindingFlags.NonPublic)!;
+    private static readonly FieldInfo _isWrapped = typeof(Il2CppObjectBase).GetField(nameof(isWrapped), BindingFlags.Instance | BindingFlags.NonPublic)!;
 
     internal static class InitializerStore<T>
     {
@@ -126,7 +126,7 @@ private static Func<IntPtr, T> Create()
                 // obj.isWrapped = true;
                 il.Emit(OpCodes.Dup);
                 il.Emit(OpCodes.Ldc_I4_1);
-                il.Emit(OpCodes.Stsfld, _isWrapped);
+                il.Emit(OpCodes.Stfld, _isWrapped);
 
                 var parameterlessConstructor = type.GetConstructor(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, Type.EmptyTypes);
                 if (parameterlessConstructor != null)
diff --git a/Il2CppInterop.Runtime/Runtime/Il2CppObjectPool.cs b/Il2CppInterop.Runtime/Runtime/Il2CppObjectPool.cs
index bd70a8ad..54a18d9a 100644
--- a/Il2CppInterop.Runtime/Runtime/Il2CppObjectPool.cs
+++ b/Il2CppInterop.Runtime/Runtime/Il2CppObjectPool.cs
@@ -40,10 +40,14 @@ public static T Get<T>(IntPtr ptr)
         var newObj = Il2CppObjectBase.InitializerStore<T>.Initializer(ptr);
         unsafe
         {
-            var nativeClassStruct = UnityVersionHandler.Wrap((Il2CppClass*)Il2CppClassPointerStore<T>.NativeClassPtr);
-            if (!nativeClassStruct.HasFinalize)
+            var il2CppClass = (Il2CppClass*)Il2CppClassPointerStore<T>.NativeClassPtr;
+            if (il2CppClass != null)
             {
-                Il2CppSystem.GC.ReRegisterForFinalize(newObj as Object ?? new Object(ptr));
+                var nativeClassStruct = UnityVersionHandler.Wrap(il2CppClass);
+                if (!nativeClassStruct.HasFinalize)
+                {
+                    Il2CppSystem.GC.ReRegisterForFinalize(newObj as Object ?? new Object(ptr));
+                }
             }
         }