[PRI 0] 2 Windows black error screens when interacting with UEFN, after last update, within a span of an hour

General Issues and Bug Reporting
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1

Summary

Got a black error scren with:
Your device ran into a problem and needs to restart
Happened twice and killed my PC. After the restart, everything seems fine.

I am on Win 11 pro 10.0.26100 build 26100.

The error messages were:

  1. Driver_Irql_Not_less_or_equal (0xD1) - EasyAntiCheat_EOS.sys (when launching live edit)
  2. Driver_Irql_Not_less_or_equal (0xA) - ntoskrnl.exe (right after closing UEFN and Fortnite)
    Logs sent to JJ

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Stability

Steps to Reproduce

N/A, but check logs (JJ has them)

Expected Result

PC doesnt die randomly

Observed Result

PC black screen of death, restarts after that.

Platform(s)

PC

2

FORT-1021196 has been created and its status is ‘Unconfirmed’. This is now in a queue to be reproduced and confirmed.

3

Hi @Wertandrew

Just done an upgrade to 38.11 on my PC

The Windows Winver command gives Version 25H2 (OS Build 26200.7171) has got same error as your pc

  1. After the Version 25H2 (OS Build 26200.7171) upgrade, the manual virtual memory pagefile was deleted during the Windows upgrade.
  2. Added the Virtual Memory pagefile of 32GB
  3. How to add a 32GB page file to Windows 11
  4. Restarted PC and can now run UEFN and Microsoft Edge/Chrome together and even start Fortnite Creative as well

This gave the impression that it was the UEFN upgrade, but it was the Windows 11 upgrade that caused the problem.