What can I do to stop Unreal from crashing everytime I build

Hello. My name is Dorian Piloto and I am a student trying to learn to use Unreal Engine as a head start for college in the future. I am planning to go for game art and design. However, whenever I attempt to build the lighting or create a new material, the program crashes and does not allow me to proceed. I am asking for assistance so I may continue in my studies and work on the projects I have been anticipating.

Much appreciated,
―Dorian Piloto


try to increase your virtual memory.

Dorian… are you using an AMD video card?

System spec’s?

Hi Masami,

If you’re getting a crash with Lightmass window that pops up, but does not close the Editor then you can follow along with this troubleshooting guide I wrote for Swarm Agent that should help.

I’ve linked to the Lightmass Crash section in this page with tips that can help you resolve or at least provide some clarification with the issue: A new, community-hosted Unreal Engine Wiki - Announcements - Epic Developer Community Forums

If the editor is closing and you’re seeing the Crash Reporter window pop up with a Call Stack. Can you please copy that to a text file and upload here along with the Logs located in your Project > Saved > Logs folder. Also, make sure to include your Machine/Epic ID so I can pull the crash up in our system.

It may be helpful to post your DxDiag as well to better understand what type of system specs you’re working with.

Thank you!


I’m sorry but I am not very good with computers. Do you think you can put it in more layman’s terms?

No Problem.

  1. If you’re seeing a window like this? It doesn’t have to have to the same message as this window, Just need to know if it’s this exact window as a whole.


  1. Are you seeing a window like this?

Let me know which one you’re seeing and we’ll go from there. :slight_smile:

Thank you!

Unfortunately, it is neither. What happens is a window pops up that says ‘Unreal Engine has stopped working.’ and the only option I have is to close the program.

Ah. In that case, follow the steps in this guide on our Wiki: A new, community-hosted Unreal Engine Wiki - Announcements - Epic Developer Community Forums

Once I have the information here I can help you look into this further. Essentially when the editor shuts down in this way it means there is something that is causing a crash in Windows to shut down the program. The Windows Event Viewer will allow me to see the error code provided and we can troubleshoot from there to get your squared away.

Here is the Log File information for a recently occurred error:

Log Name: Application
Source: Application Error
Date: 1/31/2016 1:41:52 PM
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: Piloto
Faulting application name: UE4Editor.exe, version:, time stamp: 0x568d9778
Faulting module name: igdusc64.dll, version:, time stamp: 0x52e04797
Exception code: 0xc0000005
Fault offset: 0x0000000000176be2
Faulting process id: 0x2f44
Faulting application start time: 0x01d15c5690c5d44d
Faulting application path: C:\Program Files\Epic Games\4.10\Engine\Binaries\Win64\UE4Editor.exe
Faulting module path: C:\WINDOWS\SYSTEM32\igdusc64.dll
Report Id: 4b20a637-c84a-11e5-8271-0071cc86057c
Faulting package full name:
Faulting package-relative application ID:
Event Xml:

<Provider Name="Application Error" />
<EventID Qualifiers="0">1000</EventID>
<TimeCreated SystemTime="2016-01-31T18:41:52.000000000Z" />
<Security />

<Data>C:\Program Files\Epic Games\4.10\Engine\Binaries\Win64\UE4Editor.exe</Data>

Can you also upload your DxDiag here?

You can use these steps to get your DxDiag if you’re not familiar with the process.

Thank you!

link text

Here it is

Looking at your DxDiag it’s only showing your GPU as using the Intel HD Graphics 4600.

Assuming this is a desktop computer, what kind of GPU do you have? It may be a cast of it not switching to use your GPU when needed or it not being setup properly.

It is recommended to use a GTX-470/Radeon6870 series cards. I would expect less than ideal performance or for the editor to crash otherwise. Integrated Graphics cards do not work well with the editor. Also looking at the driver listed with the Intel HD Graphics 4600 is listed as and the latest version is that I see.

You may want to see if you can update that driver to latest version from the Intel website.

So updating my GPU may help stop the crashing?

If the only GPU you have is the Integrated HD Graphics 4600 I would recommend getting a Nvidia or AMD GPU. The intel integrated HD graphics GPUs, while DX11 compatible, have been problematic with UE4. You can try upgrading the driver first and see if that works.

Okay thank you.Unfortunately this is as far as i can go. Thank you so much for your time and help!