Fix Unreal Engine Keeps Crashing with the D3D Error

Fix Unreal Engine Keeps Crashing with the D3D Error

Unreal Engine is a powerhouse for creating amazing games and experiences, but sometimes tech issues can cause headaches. That “D3D device being lost” error is a particularly frustrating one. Think of it like your graphics card suddenly wandering off in the middle of a project. Let’s troubleshoot this together and get Unreal Engine back on track!

Here’s what’s likely happening behind the scenes

Your graphics card and Unreal Engine need to talk constantly to render those stunning visuals. When that communication goes haywire, you get this crash. So many things can cause this: driver issues, overheating, unstable overclocks, even power supply problems!

Fix Unreal Engine Keeps Crashing with the D3D Error

How To Fix Unreal Engine Keeps Crashing with the D3D Error

Let’s tackle this, starting with the easiest potential fixes and working our way to slightly more involved solutions.


Sometimes, the simplest fix is the best. Tech gremlins can cause temporary glitches, and a complete restart often sets things right. Follow these steps:

  • Save Your Work: Make sure you don’t lose anything in Unreal Engine. Gracefully shut down the program if possible.
  • The Full Restart: Shut down your computer completely, wait a minute, then power it back up.
  • Testing Time: Relaunch Unreal Engine and see if the error persists. If so, let’s move on to the next step!

Update Your Drivers

Your graphics card’s drivers are the software that lets it talk to your computer. Outdated, buggy, or corrupted drivers can cause crashes galore. Let’s sort this out:

  • The Source: Don’t just use Windows Update. Go directly to the website of your graphics card manufacturer (NVIDIA, AMD, or Intel) and download the absolute latest drivers designed for your specific card.
  • Clean Slate: Sometimes, a fresh driver installation fixes problems. Display Driver Uninstaller (DDU) is a popular tool for completely wiping old drivers and setting the stage for a clean install.
  • Roll Call: If the crash started after a recent driver update, try rolling back to a slightly older version. Sometimes newer drivers have issues.

Monitor Temperature

Graphics cards get hot when working hard, and if they overheat, they throttle down or crash to protect themselves. Let’s check your temperatures:

  • Monitoring Tools: Software like MSI Afterburner or HWMonitor can show your GPU temperature in real-time.
  • Danger Zone: If you see temperatures consistently hitting 80 degrees Celsius or higher, that could be the problem.
  • Cool It Down: Improve your case airflow, clean dust buildup, or consider a better cooler for your graphics card.

Power Play

A weak or failing power supply can also cause instability, especially if your graphics card is power-hungry. Here’s how to investigate:

  • Know Your Needs: Check your graphics card specifications and find its power requirements. Make sure your power supply can comfortably handle it.
  • Swap It Out: If possible, temporarily try a different power supply to see if the crashes stop. This isn’t always an option, but it’s a great way to rule out a power issue.

Software Squabbles

Sometimes other programs running on your computer can interfere with Unreal Engine’s ability to talk to your graphics card. Let’s try isolating the issue:

  • Clean Boot: Perform a “clean boot” of Windows where only essential services are running. This helps determine if another program is causing the conflict. Search online for “how to clean boot Windows” and follow the instructions for your OS version.
  • One by One: If clean boot helps, re-enable programs one by one until the crash returns. That’ll expose the culprit! Antivirus software, overlays, and hardware monitoring tools are frequent offenders.

If you’ve overclocked your graphics card or CPU, try dialing those settings back to their default values. Overclocking can sometimes lead to instability, especially if your hardware is getting too hot.

Fix Unreal Engine Keeps Crashing with the D3D Error

Final Words

In rare cases, problems within Unreal Engine itself can cause this crash. Uninstall Unreal Engine completely, then download and install a fresh copy from the Epic Games launcher. Troubleshooting can be frustrating. Try one solution at a time so you know exactly what fixes the problem. If you’re getting specific error codes along with the “D3D device being lost” message, include those when asking for help. They provide valuable clues to narrow down the problem.

Masab Farooque is a Tech Geek, Writer, and Founder at The Panther Tech. He is also a lead game developer at 10StaticStudios. When he is not writing, he is mostly playing video games