Transform key don't visible when Import From Animation Root

Transform key don't visible when Import From Animation Root.
This problem happen from 4.17. 4.16 is visible.

Case:4.16
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1. Create new level sequencer.
2. Add Skeletal Mesh and Animation Sequence.
3. Animation import from "Import From Animation Root" in transform track.
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4. This Imported transform key but transform key don't visible.
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