Native default subobjects nulled in child Blueprints on compile

From reporting UDN:

"We had a weird issue with new components added in C++ not being instanced properly on non-direct Blueprint children.

It seems to happen if loading of the parent BP is deferred. It might be related to the code inside USE_CIRCULAR_DEPENDENCY_LOAD_DEFERRING not instancing components in case of deferred loading."

1.) Create a new (blank) C++ project

2.) Save the level and setup as startup level

3.) Add a new C++ class to the project based on ACharacter, (AMyCharacter)

4.) Add an ActorComponent (e.g. a capsule) to the character in C++ just for reference (this one will behave correctly)

5.) Start the engine, create a blueprint based on MyCharacter (BP_MyCharacterBase)

6.) Create a BP based on BP_MyCharacterBase (BP_MyCharacterChild)

7.) Open BP_MyCharacterBase, add a variable of type BP_MyCharacterChild to the BP (so the parent references the child)

8.) Place an instance of BP_MyCharacterBase on the (startup) level

9.) Save everything, close the editor 

10.) Add a new capsule component to AMyCharacter in C++ 

11.) Start the engine 

Observe the following:

• Check BP_MyCharacterChild with property editor. The newly added component will be in the transient package

CapsuleComponent'/Game/BP_MyCharacterChild.Default__BP_MyCharacterChild_C:ComponentTest_Good'

CapsuleComponent'/Engine/Transient.Default__BP_MyCharacterBase_C:ComonentTest_Bad'

• If you open BP_MyCharacterChild and hit Compile, the component will become nullptr (and it will have an empty details panel)

Request a info about UE-127172 bug tracker

I am not able to find world outliner how to enable it?

Bonjour j'ai un petit problème c'est que je ne vois plus l'onglet "scability" pour changer les graphismes de uefn et j'ai pas trouvé l'option pour le faire revenir ?

How to achieve HLSL Multiple Render Target in Material blueprints?

How can i modify the param name in EQS node

Undefined sysmbol: typeinfo for AActor when cross-compile linux dedicated server on windows

An error occurred while trying to generate project files !?

What properties of the progress bar can be used for drag and drop highlighting?

What property of the Slider is the image used when dragging?

How does UMG set overlapping layouts?