Add Timer Device, UEFN App Crashes - When: UEFN + Fortnite both running

General Issues and Bug Reporting
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1

Summary

Attempted to add timer device into UEFN Game, Game crashes completely.

Drag & drop timer while both UEFN and Fortnite test sessions are active.

Result:
Fatal error: [File:Z:\UEVFS\Root\Engine\Source\Runtime\Core\Private\GenericPlatform\GenericPlatformMemory.cpp] [Line: 300]
Ran out of memory allocating 127199084544 (121306.5 MiB) bytes with alignment 8. Last error msg: The paging file is too small for this operation to complete..

Unhandled Exception: 0x0000c000

0x00007ffb2d4c979a UnrealEditorFortnite-Engine-Win64-Shipping.dll!UnknownFunction
0x00007ffb2d4e3f83 UnrealEditorFortnite-Engine-Win64-Shipping.dll!UnknownFunction
0x00007ffb2d51ae4f UnrealEditorFortnite-Engine-Win64-Shipping.dll!UnknownFunction
0x00007ffb2d51c0f6 UnrealEditorFortnite-Engine-Win64-Shipping.dll!UnknownFunction
0x00007ffb2d46165d UnrealEditorFortnite-Engine-Win64-Shipping.dll!UnknownFunction
0x00007ffb2d529c43 UnrealEditorFortnite-Engine-Win64-Shipping.dll!UnknownFunction
0x00007ffb2d5717aa UnrealEditorFortnite-Engine-Win64-Shipping.dll!UnknownFunction
0x00007ffb2d574cbb UnrealEditorFortnite-Engine-Win64-Shipping.dll!UnknownFunction
0x00007ffb2d5748ee UnrealEditorFortnite-Engine-Win64-Shipping.dll!UnknownFunction
0x00007ffb2d6b9dde UnrealEditorFortnite-Engine-Win64-Shipping.dll!UnknownFunction
0x00007ffb2d6c8512 UnrealEditorFortnite-Engine-Win64-Shipping.dll!UnknownFunction
0x00007ffb2da184b0 UnrealEditorFortnite-Engine-Win64-Shipping.dll!UnknownFunction
0x00007ffb1e2882e8 UnrealEditorFortnite-Common-Win64-Shipping.dll!UnknownFunction
0x00007ffb1e2a07a2 UnrealEditorFortnite-Common-Win64-Shipping.dll!UnknownFunction
0x00007ffb1e2cf437 UnrealEditorFortnite-Common-Win64-Shipping.dll!UnknownFunction
0x00007ffb1e2af811 UnrealEditorFortnite-Common-Win64-Shipping.dll!UnknownFunction
0x00007ffb1e330b79 UnrealEditorFortnite-Common-Win64-Shipping.dll!UnknownFunction
0x00007ffb1e3203cd UnrealEditorFortnite-Common-Win64-Shipping.dll!UnknownFunction
0x00007ffb1e172002 UnrealEditorFortnite-Common-Win64-Shipping.dll!UnknownFunction
0x00007ffb1e171959 UnrealEditorFortnite-Common-Win64-Shipping.dll!UnknownFunction
0x00007ffb1e16bc2c UnrealEditorFortnite-Common-Win64-Shipping.dll!UnknownFunction
0x00007ffb1e16909d UnrealEditorFortnite-Common-Win64-Shipping.dll!UnknownFunction
0x00007ffb4065fc35 UnrealEditorFortnite-Engine-Win64-Shipping.dll!UnknownFunction
0x00007ffb40650127 UnrealEditorFortnite-Engine-Win64-Shipping.dll!UnknownFunction
0x00007ff6c00ea4be UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction
0x00007ff6c00f9fa4 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction
0x00007ff6c00ed0ac UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction
0x00007ff6c00ed12a UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction
0x00007ff6c00ef48a UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction
0x00007ff6c00fa764 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction
0x00007ff6c00fb232 UnrealEditorFortnite-Win64-Shipping.exe!UnknownFunction
0x00007ffc7891e957 KERNEL32.DLL!UnknownFunction

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Devices

Steps to Reproduce

Open UEFN
Open Specific File
Launch Fortnite Session
Run Test Session
Drag and drop timer device
UEFN Crashes, Fortnite remains open

Expected Result

Timer Device Places

Observed Result

UEFN Application Crashes

Platform(s)

UEFN, Fortnite

2

hi @Furkyz

The first line of crash is same as in past. Please add a 64GB (64000) Virtual memory pagefile.sys

How to add a 64GB Virtual Memory Pagefile.sys

Vote up the thread if you still think its a problem

1 Like
3

I have same error. If I add timer device in Fortnite it works fine, but when I add through UEFN it crashes.

1 Like
4

Same issue here.

It only happens when I add a Timer Device in the UEFN editor. My paging file is already configured to 4,800MB initial and 6,400MB maximum, and I have 32GB of system RAM, so I don’t think this is simply a page file issue.

Sometimes UEFN causes my whole system to lock up the moment I drag the Timer Device from the Content Browser into the viewport. Other times, it places successfully, but performance gradually degrades afterwards. Sometimes refreshing the project files after recompiling Verse hangs and doesn’t refresh the game. Fortnite then starts glitching during the play session, memory usage appears to climb, and eventually my entire system locks up, forcing a hard restart.

For reference, my system specs are:

  • Windows 11 Pro
  • Intel Core i7-10700K
  • 32GB DDR4 RAM
  • NVIDIA GeForce RTX 3060 Ti (8GB VRAM)

To me, this looks more like a memory leak related to the Timer Device than a page file configuration issue.

Problem is I can’t send any crash logs, because it doesn’t actually get to ‘crash’. It just locks up the entire OS, meaning I have to force a restart of the PC.

If I open any other UEFN project that has no Timer Device, or, if I remove the Timer Device in the current project after a restart, the issue no longer continues. It seems directly related to the Timer Device.

Kind regards,

1 Like
Timer Device settings crash UEFN when changed during an active Live Session
6

I also get a uefn crash after changing any timer setting

1 Like
8

FORT-1131138’s status has changed to ‘Ready for QA’. A member of the QA department is investigating the issue.