CustomizableSequencerTracks Plugin Bug In UE4.27, AnimatedObject is always null.

Class SequencerTrackInstant::GetAnimatedObject() is always nullptr.I know this bug was fixed in version 5.1, but I want to use it in version 4.27, how can I change it to get the correct AnimatedObject variable

I eventually traced AnimatedObject to the Run function in the MovieSceneTrackInstanceSystem.cpp, which had a line of code (TOptionalComponentReader BoundObjects = ChildRange.Allocation->TryReadComponents(FBuiltInComponentTypes::Get()->BoundObject):wink: that got the BoundObject which will be AnimatedObject later.
But I don’t know what this line of code does…