Question for nsight graphics[2022.2.1] vulkan raytracing shader profiler correlation

when I check correlation of the shader profiler, although I already use glslangValidator -V shader.vert -o shader.spv -g when I compiler shader, it still shows N/A or something unexpected, is this because of the raytracing pipeline? or because of vulkan? also, I see there’s tips for the shader profiler which said HL source, what does HL source mean for vulkan?