Ugly shadows on Landscape using Path Tracing

Hello Community,

I am working with Landscapes and I got weird sharp shadows on my Landscape. I found an solution for this using the command: “r.RayTracing.NormalBias 50”, using raytraced shadows (Photo 1). This command works fine in “Lit” Mode using Lumen. But when I swich to Path Tracing, these shadows appear again (Photo 2). Intuitively I thought I need to replace the “RayTracing” in the “r.RayTracing.NormalBias 50” command to “r.PathTracing.NormalBias 50” , but such command does not exists. I am not using Nanite, so this is not the problem.