Unreal5 Rendering screenshots causes "This might cause instability in other parts of the Streamline plugin."

Gaming and Visualization Technologies Engines Unreal
1

In our Unreal 5.3 application, whenever we run our code which renders screenshots, we get a scary error from the nVidia Streamline plugin:

LogStreamline: Error: found unexpected Viewfamily rendertarget FDummyViewport 00000000C257D900 X=1920 Y=1080. This might cause instability in other parts of the Streamline plugin.

The code above this error is looking for viewports named “BufferedRT”, “BackbufferReference”, etc but when we’re rendering a high res screenshot, the view is named “FDummyViewport”. We don’t want or need streamline in this use case. I have tried calling
UStreamlineLibraryDLSSG::SetDLSSGMode(EStreamlineDLSSGMode::Off);
before rendering screenshots.

What can we do to resolve this error?

Thanks!

2

Could someone comment on the validity of doing this? If DLSSG is disabled, this code is intended to make the FStreamlineViewExtension return without doing anything. This eliminates the log errors we’ve been getting:

FScreenPassTexture FStreamlineViewExtension::PostProcessPassAtEnd_RenderThread(FRDGBuilder& GraphBuilder, const FSceneView& View, const FPostProcessMaterialInputs& InOutInputs)
{
if (!IsDLSSGActive())
{
if (InOutInputs.OverrideOutput.IsValid())
{
return InOutInputs.OverrideOutput;
}
else
{
return InOutInputs.Textures[(uint32)EPostProcessMaterialInput::SceneColor];
}
}

(rest of the PostProcessPassAtEnd_RenderThread function)