【UE4】AkComponent do not callback whatever use mask 0 or 1

Question

When I use the offical export function to post event, Callback worked. But, if I directly NewObject<UAkComponent> and  call AkComponent->PostAkEventByNameWithDelegate(EventName, AkCallbackType::AK_EndOfEvent, OnEventCallBack). callback function will not be called and the uUserFlags always be 0 nomatter what the mask I used.

code like :

                UAkComponent* AkComponent = NewObject<UAkComponent>();
                if (AkComponent)
                {
                    FString EventName = EventID.ToString();
                    FAkAudioDevice* AudioDevice = FAkAudioDevice::Get();
                    if (AudioDevice) {
                        AkComponent->RegisterComponentWithWorld(UGameInstance::Get()->GetWorld());
                        AkComponent->SetWorldLocationAndRotation((Position), FRotator::FRotator().Quaternion());
                        AkComponent->SetAutoDestroy(false);
                        AkComponent->OcclusionRefreshInterval = 0;
                        {
                            FOnAkPostEventCallback OnEventCallBack;
                            OnEventCallBack.BindDynamic(this, &UAuidoInstanceMgr::OnPostEventCallback);
                            //AkPlayingId = AudioDevice->PostEvent(EventName, AkComponent, OnEventCallBack, AkCallbackType::AK_EndOfEvent);
                            AkPlayingId = AkComponent->PostAkEventByNameWithDelegate(EventName, AkCallbackType::AK_EndOfEvent, OnEventCallBack);

                        }
                    }
                }

and. at the wise code:

FAkComponentCallbackManager::AkComponentCallback  

the pPackage->uUserFlags always be 0.

 

-/-