Properties edited in PostEditChangeProperty do not update details panel

[anonymous_user_8829be49]

Even code in unreal has this problem. The UI Sequencer → Render Movie Settings → Burn in Options → Settings has this same issue when toggling between burn in classes in 4.21

I’ve been able to work around this by using a timer inside PostEditChangeProperty to update my uproperty. In my case, I null out the property in PostEditChangeProperty, then set a new value in the callback. It would be nice if there was some way to do this without a timer, as it feels like a hack.

Rough Example:

void UMyClass::PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent)
{
    FName PropertyName = (PropertyChangedEvent.Property != nullptr) ? PropertyChangedEvent.Property->GetFName() : NAME_None;

    if (PropertyName == GET_MEMBER_NAME_CHECKED(UMyClass, MonitoredProperty))
    {
        if (OtherProperty != nullptr)
        {
            OtherProperty->Rename(*MakeUniqueObjectName(this, USettingsObject::StaticClass(), "Settings_EXPIRED").ToString());
            OtherProperty->MarkPendingKill();
            OtherProperty = nullptr;
        }
        if (GEditor)
        {
            FTimerHandle TimerHandle;
            GEditor->GetTimerManager()->SetTimer(
                TimerHandle,
                this,
                &UMyClass::UpdateSettings,
                0.01f,
                false);
        }
    }
    Super::PostEditChangeProperty(PropertyChangedEvent);
}

void UMyClass::UpdateSettings()
{
    OtherProperty = NewObject<USettingsObject>();
}