Problem with Npc spawning at the same time as subscribing or Awaiting SpawnedEvent for npc_spawner_device

General Feedback & Requests
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     FirstNpcSpawner.SpawnedEvent.Subscribe(***)
     Target := FirstNpcSpawner.SpawnedEvent.Await()

Just by executing this code, spawn() is also called and Npc spawns. If it is not a bug, I should write a comment.