[Scene Graph] Navmeshes not created correctly for prefabs added to the scene at runtime

Summary

We are having an issue where Prefabs that are added via AddEntities() do not generate proper navmeshes.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Assets

Steps to Reproduce

Create a prefab with multiple nested mesh components. Turn on Debug / Navigation. Add a few copies of the entity to the scene at runtime using AddEntities().

Expected Result

I should see a generated navmesh.

Observed Result

Navmeshes appear in incorrect spots, sometimes factured or bisected, and sometimes they do not display at all.

Platform(s)

PC

FORT-973393 has been created and its status is ‘Unconfirmed’. This is now in a queue to be reproduced and confirmed.