Turning on MSAA crashes editor

Hi guys,

I’m developing for Quest, as recommended by Oculus i want to use MSAA however, whenever I turn it on in project settings the editor crashes and I have to turn it off in Defaultengine.ini before the project will successfully open again.

I’m using the forward renderer and ES3.1 preview.

Error thrown up is…

Fatal error: [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Windows/D3D11RHI/Private/D3D11Util.cpp] [Line: 258] Direct3DDevice->CreateRenderTargetView(TextureResource,&RTVDesc,RenderTargetView.GetInitReference()) failed at D:/Build/++UE4/Sync/Engine/Source/Runtime/Windows/D3D11RHI/Private/D3D11Texture.cpp:810 with error E_INVALIDARG

UE4Editor_D3D11RHI
UE4Editor_D3D11RHI
UE4Editor_D3D11RHI
UE4Editor_D3D11RHI
UE4Editor_RenderCore
UE4Editor_RenderCore
UE4Editor_Renderer
UE4Editor_Renderer
UE4Editor_Renderer
UE4Editor_Renderer
UE4Editor_Renderer
UE4Editor_Renderer
UE4Editor_Renderer
UE4Editor_Core
UE4Editor_Core
UE4Editor_RenderCore
UE4Editor_RenderCore
UE4Editor_Core
UE4Editor_Core
kernel32
ntdll

Any ideas on what might be causing this?