Unreal Engine 4.14.1 Display Driver Crash With New Project

Hi all,

It’s been a while so I decided to try the updates and other workarounds mentioned on the forums. The crash is still present on 4.14.3, but it’s harder to trigger it with the original repro steps. I’ve added these additional steps which do produce the crash reliably:

  1. Close the “SK_Mannequin” asset.
  2. Open “Content/Mannequin/Animations/ThirdPerson_AnimBP”.

UE 4.14.3 (-d3ddebug)

result: crash

The original steps were enough to trigger the crash. However, it’s harder to reproduce the issue that way. Following the additional steps reproduces the crash reliably.

UE 4.14.3 (-d3ddebug, TdrDelay set to 10)

result: crash

The modified steps were enough to trigger the crash. It took longer for the display driver to reset, and editor appeared frozen before the reset.

UE 4.14.3 (-d3ddebug, NO Real-Time Thumbnails)

result: no crash

The modified steps did not trigger the crash. Even heavyweight things like rebuilding lighting, opening multiple blueprints, materials, etc. couldn’t trigger a crash.

Workaround:

Open the editor, open the Content Browser, select View Options (eye icon bottom right), and uncheck Real-Time Thumbnails.

Source: here. Thank You: IronicParadox

UE 4.14.3 (-opengl4 -opengldebug)

result: no crash

Note that -opengldebug is optional, and is the source of some verbose logging. The editor ran fine using only the -opengl4 flag and did not crash.

Workaround:

Create a shortcut to UE4Editor.exe. Edit the shortcut’s properties, in the Target field add the -opengl4 flag:

Target: "C:\Program Files (x86)\Epic Games\4.14\Engine\Binaries\Win64\UE4Editor.exe" -opengl4

Source: here. Thank You: Gereksiz