Streaming Objects are not visible in Duplicate Level

hello.
We are currently developing an FPS game with Unreal 5.1 version.

Based on the above document, I made a kill cam replay with Memory Streamer and confirmed that it works normally. The problem is that I activated the streaming level function of the world partition, but the objects being streamed are not visible in Duplicate Level.
And when I recorded and played back with Null Streamer, I confirmed that the streaming objects were loaded normally.
How can I show streaming objects normally in Duplicate Level using Memory Streamer?