Unreal Engine 4 (UE4) is a powerful toolset used for developing games and interactive experiences, but like any complex software, it can encounter issues that lead to fatal errors. These errors can be frustrating, but they often have straightforward solutions.
If you’re facing a UE4 fatal error, here’s a comprehensive guide to help you identify and resolve the issue. You can watch the video below or continue reading the article.
Below we have discussed:
Also read: What is Socket open error in Epic Games? Quick Fix
What causes this error?
There are a few reasons that are responsible for the how to fix Unreal Engine 4 (UE4) fatal error, and they are mentioned below:
- Outdated graphics drivers.
- Not having sufficient permissions.
- Overclocking might be affecting the process.
- Outdated windows.
How to fix the issue?
Here are six methods to help you fix the Unreal Engine 4 (UE4) fatal error:
Update the Graphics card
Outdated or incompatible graphics drivers frequently cause UE4 crashes. To prevent this, visit your GPU manufacturer’s website (NVIDIA, AMD, or Intel) and download the latest drivers to ensure they are up to date. You can also use Device Manager to update the graphics driver; here is how to do that:
Step 1: Press the Windows+X and tap on the Device Manager option in the dropdown menu.
Step 2: Find and expand the Display adapters category and right-click on the driver.
Step 3: In the pop-up menu, click on the Update driver option.
Step 4: In the new window, click on the Search automatically for drivers option.
Windows will search for the update of the driver and update it.
Check out our article to know how how to update the Nvidia graphics driver
Disable full-screen optimisation and run as administrator
Disabling full-screen optimization and running Unreal Engine 4 as an administrator can help prevent crashes and improve performance. To disable the full-screen optimisation and run as administrator follow the steps below:
Step 1: Firstly find the .exe file of the game and then right-click on it.
Step 2: In the dropdown menu, click on the Properties option.
Step 3: In the properties, click on the Compatibility tab and then make the box beside the Disable fullscreen optimizations option is unchecked and the box beside the Run this program as an administrator is checked. After you are done click on the Apply button and then click on the OK button.
Force DX 11/DX12 rendering in your game
Switching between DirectX 11 and DirectX 12 can resolve rendering issues that lead to fatal errors. To do that you have to add the custom flags, you can also add custom launch parameters if you are using platforms like Steam. Here are the steps to do that:
Step 1: Open the Steam, go to the Library, right-click on the game and then in the dropdown menu click on the Properties option.
Step 2: Go to the General tab and then in the Launch Options box enter -dx11, if this doesn’t work then come back to the same page and enter -dx12.
Change display scale
Sometimes, display scaling settings can interfere with UE4 and cause fatal errors. Adjusting the display scale can resolve these issues, here’s how to do that:
Step 1: Press Windows Key + I to open Windows Settings and click on Display.
Step 2: Scroll down to Scale and layout and ensure you’ve got the recommended setting applied.
Now try launching the game again.
Revert Overclocking settings
Overclocking your CPU or GPU can lead to instability and crashes. If you have overclocked your hardware, revert to the default settings to see if it resolves the issue.
Update Windows
Keeping your operating system up to date can resolve numerous compatibility issues and bugs that may cause UE4 fatal errors. Ensure that your Windows OS is fully updated to benefit from the latest security patches, driver updates, and system enhancements that can help stabilize Unreal Engine 4.
Check out our article to learn how to update Windows.
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