In UE 4.27 Preview we add Path Tracer to Render Queue settings and turn it on.
The Render Queue does use path tracer.
How-ever it does not use the PathTracer settings contained within the PostProcessVolumne in the level.
Also the Path Tracer in settings in the Render Que does not appear to have any settings.
We testing by having our path tracer settings in the posprocess volume have very high samples per pixel. Everything looked right in the viewport.
But when we render it behaves as if pathtracer has 1 sample per pixel and zero denoising.
Any help is greatly appreciated