Don't request a terse update after local teleport - this will be done by the main frame loop anyway and has the potential to race that thread.

OpenSim/Region/Framework/Scenes/ScenePresence.cs

@@ -1358,8 +1358,6 @@ namespace OpenSim.Region.Framework.Scenes
                 else
                     PhysicsActor.SetMomentum(vel);
             }
-
-            SendTerseUpdateToAllClients();
         }
 
         public void avnLocalTeleport(Vector3 newpos, Vector3? newvel, bool rotateToVelXY)
@@ -1391,12 +1389,8 @@ namespace OpenSim.Region.Framework.Scenes
                     }
                 }
             }
-
-            SendTerseUpdateToAllClients();
         }
 
-
-
         public void StopFlying()
         {
             Vector3 pos = AbsolutePosition;