Copy Pose From Mesh node does not affect the animation when previewing in Sequencer. This works when played in the editor.
Expected: Both meshes animate together when scrubbing in Sequencer to preview the scene
Results: Meshes do not animate together when scrubbing in Sequencer to preview the scene but instead animate together when PIE
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-60444 in the post.