Another try to get these shaders to compile correctly

com.unity.perception/Editor/GroundTruth/ShaderPreprocessor.cs

 #if HDRP_PRESENT || URP_PRESENT
 
 #if HDRP_PRESENT
-            var enabled = new ShaderKeyword(shader, "HDRP_ENABLED");
-            var disabled = new ShaderKeyword(shader, "URP_ENABLED");
+            var keyword = new ShaderKeyword(shader, "HDRP_ENABLED");
-            var enabled = new ShaderKeyword(shader, "HDRP_DISABLED");
-            var disabled = new ShaderKeyword(shader, "HDRP_ENABLED");
-
+            var keyword = new ShaderKeyword(shader, "HDRP_DISABLED");
-                var skeys = data[i].shaderKeywordSet.GetShaderKeywords();
-                foreach (var s in skeys)
-                {
-                    var txt = ShaderKeyword.GetGlobalKeywordName(s);
-                    txt = ShaderKeyword.GetKeywordName(shader, s);
-                }
+                if (data[i].shaderKeywordSet.IsEnabled(keyword))
+                    continue;
-                data[i].shaderKeywordSet.Enable(enabled);
-                data[i].shaderKeywordSet.Disable(disabled);
+                data.RemoveAt(i);
             }
 #endif
         }

com.unity.perception/Runtime/GroundTruth/Resources/KeypointDepthCheck.shader

     #pragma only_renderers d3d11 ps4 xboxone vulkan metal switch
 
     //enable GPU instancing support
-    #pragma multi_compile __ HDRP_ENABLED
+    #pragma multi_compile HDRP_ENABLED HDRP_DISABLED
     #pragma multi_compile_instancing
 
     ENDHLSL