Fixed copy/paste mistake...

com.unity.render-pipelines.high-definition/HDRP/Lighting/LightLoop/LightLoop.cs

 
             lightData.color = GetLightColor(light);
 
-            lightData.forward = light.GetUp();
+            lightData.forward = light.GetForward();
             lightData.up = light.GetUp();
             lightData.right = light.GetRight();