If your crash is occurring when opening the editor in DX12 mode after enabling Raytracing in your Project Settings, a workaround is this:
After you enable Raytracing, close the editor, then open 4.22 Preview 6 from the launcher (without the DX12 option). Wait for all the shaders to recompile (took several minutes for me), then close your project, then start the editor in DX12 mode and open your project again in that.