Conditions:
- Open world map with partitioning. Non partitioned this doesnt happen.
- A parent blueprint, spatially loaded. (house). Turn off spatially loaded and it doesnt happen
- a child blueprint. (door) As a standalone blueprint it does not happen.
- 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.