Hmmm... it could just be where it is being spawn at. It could also be the ltmp. Try seting the Bounding Radius in the machine's tag to something high. I am not sure what the problem could exactly be so either try what I have said or wait for someone else to post the correct thing to fix it.
Add containments lightmap to the map, Swap it to that, And you will have a nice map. Also, Make the machienes spawn 1 at a time in entity. It removes much of the game lag.
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