UEFN fatal out-of-memory crash, paging file too small

Summary

UEFN crashes with a fatal out-of-memory error every time I place a Trigger Device or Timer Device in my project.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Devices

Steps to Reproduce

Launch UEFN on Windows.
Open a UEFN project.
Open the Content Browser.
Place a Trigger Device or Timer Device into the level.
UEFN crashes with a fatal out-of-memory error.

Expected Result

The Trigger Device or Timer Device should be placed successfully, and UEFN should remain stable.

Observed Result

UEFN crashes every time I place either a Trigger Device or Timer Device. The crash report displays the following error:

Fatal error in GenericPlatformMemory.cpp, line 300.

Ran out of memory allocating 127199084544 bytes (121306.5 MiB) with alignment 8.

Last error message: The paging file is too small for this operation to complete.

Platform(s)

windows

Additional Notes

The issue is consistently reproducible and occurs specifically when placing a Trigger Device or Timer Device. The reported allocation request is approximately 121 GB. My Login ID and Epic Account ID have been removed from the publicly posted crash information for privacy.

hi @GrooveContent

Please add a bigger virtual Memory change the 32000 to 256000 and put this on a spare SSD/NVRAM drive. UEFN needs at least 64GB (64000) to run with Fortnite,

Usually double the requested error size

How to manually add a 256GB (256000) virtual Memory page file