SweepComponent fails against non-root bodies of skeletal mesh component in PhysX

UDN - https://udn.unrealengine.com/s/question/0D52L00005H9X5XSAV/sweepcomponent-never-returns-a-valid-hit-against-skeletal-meshes-when-using-physx?fromCase=1

1. In a physx build, pick a skeletal mesh and create/use a physics asset for it that has bodies for the root bone and one or more other bones.
2. Call USkeletalMeshComponent::SweepComponent against it such that the sweep should hit the root bone's shape. This sweep should hit.
3. Now call USkeletalMeshComponent::SweepComponent such that the sweep should hit a different shapet that's not on the root body. This sweep won't hit.