Fix crash in SceneAnimationPlayer

Source/Engine/Animations/SceneAnimations/SceneAnimationPlayer.cpp

@@ -905,7 +905,7 @@ void SceneAnimationPlayer::Tick(SceneAnimation* anim, float time, float dt, int3
                         MException ex(exception);
                         ex.Log(LogType::Error, TEXT("Property"));
                     }
-                    else if (!MCore::Type::IsPointer(valueType))
+                    else if (!MCore::Type::IsPointer(valueType) && !MCore::Type::IsReference(valueType))
                     {
                         if (boxed)
                             Platform::MemoryCopy(value, MCore::Object::Unbox(boxed), valueSize);

Source/Engine/Engine/NativeInterop.Unmanaged.cs

@@ -1230,7 +1230,7 @@ namespace FlaxEngine.Interop
         internal static bool GetTypeIsReference(ManagedHandle typeHandle)
         {
             Type type = Unsafe.As<TypeHolder>(typeHandle.Target);
-            return type.IsByRef;
+            return !type.IsValueType; // Maybe also type.IsByRef?
         }
 
         [UnmanagedCallersOnly]