UEFN impossible to calculate the memory

General Issues and Bug Reporting
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1

Summary

UEFN is starting to become unusable for large projects that use a lot of memory, 20 minutes to enter are in the map and another 15 to create a private version. now for two days I don’t know why I can not calculate the memory because the editor freezes when it has to calculate the memory and I can not publish my map.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Memory

Steps to Reproduce

launch a memory calculation

Expected Result

UEFN should calculate the memory?!

Observed Result

the editor freezes (not connected anymore)

Platform(s)

pc

2

Hello,

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Been stuck at this too for 6hrs (8th attemp rn)

3

Re @BIBOPLAYER_12 , disable streaming it’ll work (sad but workaround for the moment), kinda scared that this issue has been a thing since 2023 (windmill in island were causing this aswell)

4

i don’t use streaming, now uefn seem to be ok, they have fixed waiting time and mem calc issue

5

Make sure to pump up your PC’s Virtual Memory

Minimum 64GB, on a seperate HD to OS if possible

6

how i pump the virtual memory?

7

In Windows 10 - Task Bar search for Advanced System Settings, it will open and you’ll see a Performance button, which will open up the Performance Options, select the Advanced Tab, it will show Virtual Memory section and a Change… button, click on that

Don’t let windows manage it, if you’ve only got one HD, make it as big as possible and grab a shovel and see if you can dig up another drive from the backyard.
I once picked up a HP server from a rubbish pile, with 3 good and 1 bad, 2TB WD Green Hard Drives in it.

If you have more than 1, remove the paging file from the Hard Drive with Windows and/or Fortnite on it for better performance.

The minimum recommended size for UEFN is 64Gb