Unreal 5.6.1 Path Tracer is not rendering ShallowWaterRiver

I’m trying to use Path Tracer to render a river for an animated short film, and the water doesn’t show up at all in Path Tracer. I tried

r.RayTracing.Geometry.Water 1
r.Water.WaterMesh.Enabled 1
r.Water.WaterMesh.EnableRendering 1
r.Water.WaterInfo.RenderMethod 2

I can’t find anything else that could enable it, and I am happy to share more of my water setup and render settings. Here’s the difference between Deferred Rendering and Path Tracing.

I think I saw something similar recently. Pretty much a guess, but do you have ‘hardware ray tracing’ on in project settings?