PCG memory inconsistencies

Summary

PCG seems to be having memory inconsistencies between identical projects (1v1,2v2,3v3,4v4) that are impossible to properly diagnose.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Memory Calculation

Steps to Reproduce

Create a PCG graph that spawns instanced static meshes on the top of meshes in a scene with a ton of objects.

Expected Result

The memory stays consistent between projects that are identical.

Observed Result

Some projects have an increase of 30mb of memory due to this change, while others have 8mb, despite sharing the same amount of actors, and exact same environment.

Platform(s)

N/a

Island Code

6570-5231-1418

The status of FORT-1189828 changed to ‘Needs Triage’. We are routing this to the appropriate team for investigation.