Stop>Set Sequence>Play causes spawnables to be duplicated

Stop>Set Sequence>Play causes spawnables to be duplicated

There is an alternate repro (see attached image) that uses Create Level Sequence Player, but that one seems expected since it is, well, creating a new Sequence Player

1. Open the attached project
2. PIE
3. Hit the F key
4. Hit the F key again

Result: Each time you hit F, it fires off a sequence of Stop, Set Sequence, and Play on the level sequence. When you do this, it spawns a new directional light and particle system.
Expected: Spawnables disappear after a new sequence is set