Unreal Engine Issues

UE-88616

D3D12RHI crash when interacting with UI using dx12 with raytracing enabled

D3D12RHI crash when interacting with UI using dx12 with raytracing enabled

Description

Enabling raytracing and DirectX12 results in D3D12RHI crash when interacting with the UI or console inside of the editor. 

User is using the latest drivers and has adequate hardware to run raytracing and Dx12, they were not having issues until the most recent Nvidia driver update.

NOTE: Enabling debug symbols forced the engine to close without a call-stack or crash window appearing. 

Steps to Reproduce
  1. Start a new project with raytracing and Directx12 enabled
  2. Interact with the UI

 

Result: Crash

Expected: Engine to run without crashing

Callstack

Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000048

nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
nvwgf2umx
D3D12
D3D12
dxgi
dxgi
dxgi
dxgi
dxgi
dxgi
dxgi
UE4Editor_D3D12RHI
UE4Editor_D3D12RHI
UE4Editor_D3D12RHI
UE4Editor_RHI
UE4Editor_RHI
UE4Editor_RHI
UE4Editor_RHI
UE4Editor_Core
UE4Editor_Core
UE4Editor_RenderCore
UE4Editor_Core
UE4Editor_Core
kernel32
ntdll

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Fixed
ComponentUE - Graphics Features
Affects Versions4.24.2
Target Fix4.26
Fix Commit13060514
Main Commit14151001
Release Commit13060514
CreatedFeb 12, 2020
ResolvedApr 28, 2020
UpdatedAug 20, 2020
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