Constant Crashes in UE5.6 / UE5.5 / UE5.4

[AnasMh2025]

Hello,

I’m experiencing constant crashes while working in Unreal Engine (UE5.6, UE5.5, and even UE5.4).
Sometimes the crash happens immediately on startup, other times after about an hour of work.
Even creating a brand-new project results in a crash.

Here’s what I’ve tried so far without success:

• Deleted DerivedDataCache (both from the project folder and from Users/Common/DerivedCache).

• Deleted files from Users/Common/Zen.

• Deleted the Saved folder of the project.

• Verified the engine installations for UE5.6, UE5.5, and UE5.4.

• Reinstalled the latest NVIDIA drivers (version 581.15).

• Multiple clean reinstall attempts of Unreal.

Still, the issue persists.

Additional issues:

• MetaHuman: Editor crashes instantly when dragging the Blueprint into the level.

• Rendering: I can’t render sequences. I tried creating new Sequencers and new Cameras, but the crash still happens.

At this point I’m really frustrated, since I can’t get any work done.

My PC specs:

• Intel i9-14900K

• 128GB DDR5 RAM

• RTX 4080 Super

• 2TB NVMe SSD

Any advice or troubleshooting steps would be greatly appreciated.

Thanks in advance.

[AnasMh2025]

Another Crash Report

LoginId:0454eb66418f7b8f19facf97dfdd7b11
EpicAccountId:da1b30b9d5b3420a92379a4e7b17c923

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x000000c7ce8020b4

UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderPreprocessor
UnrealEditor_ShaderCompilerCommon
UnrealEditor_ShaderCompilerCommon
UnrealEditor_RenderCore
UnrealEditor_RenderCore
UnrealEditor_RenderCore
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
UnrealEditor_Core
kernel32
ntdll

[BRGEzedeRocco]

Hello, @AnasMh2025 ,The second log says that the project crashes while pre-processing/compiling shaders.
You can try the following:

• Moving the Engine to the same physical disk as the project

• Disable all non-Epic plugins (and also temporarily disable MetaHuman to see if it causes the error).

• Clearing DerivedDataCache and all Saved/Intermediate folders

• Disable “Support Compute Skin Cache” Project Settings → Rendering
  (you also have to diable ray tracing )

• Open the engine using -d3d11

1. Close the editor.
2. Search for your uproject file
   
   
3. Right-click - Send to Desktop- (create shortcut).
4. Right-click the shortcut- Properties.
5. In Target ,at the end of the quotes, leave a space and type -d3d11 :
   

Also I found these two posts , It’s not the same log , but they have similar errors , so you could try it and maybe it will work.

500×500 2.84 KB

@eddzoh This worked for me on same crash with every project i tried to open on 5.4 “delete all from directory C:\Users\UserName\AppData\Local\UnrealEngine

UE 5.4.2 and every other version keeps crashing on startup.

I’m having the same problem. Everything was working fine until I rolled back my GPU drivers to fix a specific game from crashing. Since then, attempting to launch UE5.4.4 yields this exact crash log, even after updating the drivers again, freshly reinstalling them, reinstalling unreal, etc etc , now I’ve done two CLEAN windows reinstalls and the issue persists. I’m starting to think it could be a hardware issue, maybe silicon degradation caused by the cpu voltage being too high out of the box …

From what I’ve researched, I’ve seen that most of the errors happen to people with an Intel i9-14900K and an RTX 4080 or 4090. This post talks about how to fix it by changing the BIOS settings.

• https://www.reddit.com/r/unrealengine/comments/1dk1kkc/unrealengine_54_keeps_crashing_loading_a_scene/

Hope it helps ! If nothing works for you, let me know and we’ll see if we can find a solution.

[AnasMh2025]

Thanks for the help.
The issue is with the Intel i9-14900K itself, a factory-level problem. The CPU is insanely fast, but that speed causes stability issues. The only way I got it to work was by disabling Turbo Mode, which basically turns it into an i3 !! . That’s unacceptable.

I’m switching to Ryzen , it’s more stable, reliable, and frankly better than what Intel is putting out right now. After disabling Turbo Mode, all my projects ran fine, but I’m done with Intel. I won’t be going back.

[AycaAvc]

I had the exact same issue with Unreal Engine crashes. In my case, the problem was definitely the Intel i9-14900K. After sending the CPU in for service, I haven’t experienced any more crashes. Still, I feel like this is a more general problem and could happen again in the future D:, I wish I choose something different…

[pezzott1]

Could you share the log at /Saved/Logs/ ?