Level Sequence does not work properly when combined with World Composition

[Anonymous_a57a5567fbe6397bf1f654ae846f4d38 (郭志斌)]

like bug UE-38454,
It still exists in 4.17

[Anonymous_a57a5567fbe6397bf1f654ae846f4d38 (郭志斌)]

How do you make actors move relative to position in Matinee

see it