Trouble controlling or enabling ray tracing with PostProcessVolume

Development Rendering
1

I am trying to enable ray tracing through a PostProcessVolume. The camera is definitely within the volume, it is the only post processing volume, I have the appropriate version of Windows and an RTX card, started UE4 with -dx12. However when I switch between ray tracing and screen space reflections there is no change and it always appears to be screen space.

I am doing what is depicted in this official video Real-Time ray tracing | Feature Highlight | Unreal Engine - YouTube

Do I need to do anything with the existing reflection probes or materials? Are there any other settings that might be interfering? Thanks.

2

Every project needs to have ray tracing turned on in the project settings…

3

Have that done, first thing I did.

4

My mistake, I did not have ray tracing enabled on that project but the other project I had been working on. It does appear to just work without any further adjustments.