Editor crashes when using DX12 and/or Ray Tracing?

Open your windows explorer, under the documents folder, search for “Unreal projects”> (Project name)> Config folder and open ‘DefaultEngine.ini’ using notepad, scroll all the way down and replace the line ‘DefaultGraphicsRHI=DefaultGraphicsRHI_DX12’ with ‘DefaultGraphicsRHI=DefaultGraphicsRHI_DX11’.

Hope this works for ya !