Unhandled exception at 0x00007FFEB9FDA558 (nvwgf2umx.dll) in UE4Editor.exe: 0xC0000005: Access violation reading location 0x0000000000000000.
bool FD3D11Viewport::PresentChecked(int32 SyncInterval)
{
HRESULT Result = S_OK;
bool bNeedNativePresent = true;
if (IsValidRef(CustomPresent))
{
bNeedNativePresent = CustomPresent->Present(SyncInterval);
}
if (bNeedNativePresent)
{
// Present the back buffer to the viewport window.
Result = SwapChain->Present(SyncInterval, 0);
}