The problem is that the camera is evaluated when the sequencer is played, but the animation does not seem to play properly.
It seems that the licensee found this problem when implementing it in C++, but it seems that the problem also occurs with playing sequencer on blueprint.
1. Open attached the project.
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2. Press PIE.
This is a project where Sequencer is played after 0.5 seconds when PIE is executed.
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Pause and Skip Frame to see the problem.
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The expected behavior is that the animation plays as the camera moves.
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-87564 in the post.