UEFN memory issue after v40.0

Summary

There is a critical memory issue after v40.0 where computer memory usage is skyrocketing to 90% or more.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Memory

Steps to Reproduce

  1. Launch UEFN
  2. Open a project

Expected Result

Expected result is once you launch UEFN you will get a memory pressure pop up message. On your computer if you open up the task manager it will show your computer using around 90% memory before a project is open. Once a project is open the number will go up to around 95% even if settings are at the lowest and could lead to a crash in the software.

Observed Result

Launched UEFN and as expected got a message for memory pressure and the memory being used on my computer was around 90% at 88% without a project opened. Once a project was opened the number rose to 95% memory usage. Software crashed within an hour. This is also happening even if the settings in the project are set to the lowest.

Platform(s)

Windows 11

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The status of FORT-1079605 changed to ‘Needs Triage’. We’ve confirmed the issue and it’s waiting to be assigned to someone to fix it.