This is a common crash occurring on Windows and Mac in 4.15 and 4.16 (two different callstacks with close similarities). The callstack is also similar to
UE-45649 and may be related.
repro steps currently unknown
Fatal error: [Link Removed] [Line: 327] SwapChain->ResizeBuffers(1,SizeX,SizeY,RenderTargetFormat,DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH) failed at D:\Build++UE4+Release-4.16+Compile\Sync\Engine\Source\Runtime\Windows\D3D11RHI\Private\D3D11Viewport.cpp:220 with error DXGI_ERROR_INVALID_CALL, Size=536x256 Format=DXGI_FORMAT_R10G10B10A2_UNORM(0x00000018)
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-47762 in the post.