Strange child blueprint duplication issue in open world.

Development Programming & Scripting
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1

Conditions:

  1. Open world map with partitioning. Non partitioned this doesnt happen.
  2. A parent blueprint, spatially loaded. (house). Turn off spatially loaded and it doesnt happen
  3. a child blueprint. (door) As a standalone blueprint it does not happen.
  4. Cast to that child. Without casting, it does not happen.

Under these conditions, the door is created twice, the server door opens and a door local to the player remains closed. I say this because even though a door remains closed, you can walk through it, while the open one respects collisions.
Unfortunately, I don’t understand enough about replication to do it without RPC’s or casting so I am at a complete standstill.

2

Correction. No cast required.
Only spatially loaded parent in partitioned map - duplicates child bp. it shows up in outliner as a dynamically spawned object.