Fixed a bug in body parts positions conversion to body space. Fixed camera follow to always look at body.

UnitySDK/Assets/ML-Agents/Examples/Crawler/Scenes/ArticulatedCrawlerStaticTarget.unity

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UnitySDK/Assets/ML-Agents/Examples/Crawler/Scripts/ArticulatedCrawlerAgent.cs

 
         if (bp.arb.transform != body)
         {
-            var localPosRelToBody = body.InverseTransformPoint(arb.transform.TransformPoint(arb.transform.position)); // Translate from world space to body local space, since all articulations are children of body in hiearchy
+            var localPosRelToBody = body.InverseTransformPoint(arb.transform.position); // Translate from world space to body local space, since all articulations are children of body in hiearchy
             AddVectorObs(localPosRelToBody);
             AddVectorObs(bp.currentXNormalizedRot); // Current x rot
             AddVectorObs(bp.currentYNormalizedRot); // Current y rot

UnitySDK/Assets/ML-Agents/Examples/SharedAssets/Scripts/CameraFollow.cs

             var newPosition = new Vector3(target.position.x + m_Offset.x, transform.position.y,
                 target.position.z + m_Offset.z);
             gameObject.transform.position = newPosition;
+            gameObject.transform.LookAt(target);
         }
     }
 }