Crashing Issue

Development Getting Started & Setup
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1

Hey everyone, so I need some help with a crash error I keep getting. Can someone please help me on how to fix it?
Here’s the error I get.

Assertion failed: Status < (sizeof(*RtlpNumberOf(AftermathReason))) [File:D:/Build/++UE4+Licensee/Sync/Engine/Source/Runtime/Windows/D3D11RHI/Private/D3D11RHI.cpp] [Line: 667]

UE4Editor_Core
UE4Editor_Core
UE4Editor_D3D11RHI
UE4Editor_D3D11RHI
UE4Editor_D3D11RHI
UE4Editor_D3D11RHI
UE4Editor_D3D11RHI
UE4Editor_RHI
UE4Editor_RHI
UE4Editor_RHI
UE4Editor_RHI
UE4Editor_RHI
UE4Editor_SlateRHIRenderer
UE4Editor_SlateRHIRenderer
UE4Editor_SlateRHIRenderer
UE4Editor_Core
UE4Editor_Core
UE4Editor_RenderCore
UE4Editor_RenderCore
UE4Editor_Core
UE4Editor_Core
kernel32
ntdll

Every time it crashes it shows that. Help would be greatly appreciated.

Thank You.

2

There’s little that can be gathered from that error message. If I were you, I’d start by getting my hands on DDU, letting it do its magic and then installing a fresh set of drivers from the official site of your GPU’s maker.

Or wait for a Hotfix for 4.25; hard to tell what this relates to. :expressionless:

3

Ok, thank you for your response I’ll try that out.

4

Common answers are:

  1. Upgrade to the latest drivers for your graphics card
  2. Ensure that UE4 is using your dedicated graphics card if you have it
  3. Switch to the NVIDIA Studio drivers

However neither 1 nor 2 worked for me and I didn’t learn about #3 until recently. I have an NVIDIA Geforce 1660 6GB and I’m using Windows 10 with 32GB of RAM on a 1440x900 screen. Here is what did work:

  • Start NVIDIA Control Panel
  • Select Manage 3D Settings → Program Settings
  • Choose UE4Editor.exe in the dropdown
  • Turn Antialiasing - FXAA to Off

I used to see a dozen or more crashes every hour, but after making this change, UE4 hasn’t crashed once.

If turning FXAA alone off doesn’t work, you can try turning off more features, as it may be a VRAM utilization issue specially if your monitor has a higher resolution.

5

I resolved deleting all the stuff in the project dir except for Content and the project file.

6

Oh my god, this may have fixed it for me. THANK YOU. I was using the most recently updated GPU driver and wondering what else I could do. I think this may have fixed the fact that UE4 (both .24 and .25) were crashing when clicking any of the dropdown menus. Fingers crossed that it stays fixed!