[UEFN / Fortnite] Crash in all Lobby after 18 December Update

General Issues and Bug Reporting
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1

Summary

Since the Fortnite Christmas update on 18 December 2025, Fortnite and UEFN crash consistently in both Creative sessions and Battle Royale.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Other

Steps to Reproduce

Launch Fortnite / UEFN

Open your UEFN project

Start an editing session OR enter a Battle Royale match

Wait for the lobby → crash occurs after a few seconds
(Le crash survient dans UEFN et BR, FPS chute à 0 avant le freeze / crash)

Expected Result

Fortnite / UEFN lobby should load normally without crash

Creative session should start

FPS should remain stable, allowing editing and testing of the map

Observed Result

Game freezes completely within a few seconds of lobby appearing

FPS drops suddenly to 0

No error message is displayed

Platform(s)

PC / Windows 11

GPU: NVIDIA GTX 1650

RAM: 32GB

Tested DX11/DX12

Pilots Game Ready & Studio

Additional Notes

Full reinstallation of Fortnite and UEFN done, shader caches deleted

Tested on new Windows user account → freeze still occurs

GPU tested with FurMark → stable, normal temperatures

Problem appeared after the 18 December 2025 update

Changing drivers or DX versions does not resolve the issue

Confirms issue is engine regression, not shader compilation or hardware problem

3

i have same problem… can only play for a few minutes the crashes. please fix

4

I have the exact same issue and went through the same steps to try to resolve it.

5

Agree, but first load the latest MS-approved driver for the GTX 10XX series

My Nvidia card is a GTX 1050 Ti, and this is similar to the GTX 1650

GeForce Game Ready Driver | 581.80 | Windows 11 | NVIDIA

@Rideness-30

There is another driver, 591.59 Game Ready Driver released on 18th December 2025 at same time as 39.11 that may be causing problems

Updated link

[Solved needs Nvidia 581.80 driver] Battle Royal Fortnite PC 39.11 patch now Frozen see Picture Consoles working - General / Issues and Bug Reporting - Epic Developer Community Forums

7

Same issue with 2 systems:

R5 2600x, 32gb Ram, 1070 TI

R5 3600, 16gb Ram RX 570

Windows 11

Not experienced on

R9 5900x, 64gb ram, 9070XT

8

I’ve already tried that and I still get the freeze at the beginning of the game.

9

UPDATE - happened at random on 5900x system

10

Please look at Epic Support

RESOLVED: Known issues with NVIDIA 576.02 drivers on RTX 50-series GPUs | Epic Developer Community

also crashing on all NVidia including BR,

[Solved need Nvidia 581.80 driver] Battle Royal Fortnite PC 39.11 patch - General / Issues and Bug Reporting - Epic Developer Community Forums

11

No Nvidia here bud. R9 5900x and rx9070xt

13

FORT-1036165 has been ‘Closed’. We’re unable to reproduce this issue.