The different colored Circles around each mob is matched by a dot on it's life bar the AW doesn't have a life bar cause I had too many up so I just squiggled AW over it
It could be the client but I doubt it since they were all changed to the current body values in LBR but if it is then it's an issue with the RunUO program causing the client to do so Since if LBR was supported they would show properly. I'm going to check this in UO's 3D client and will report back my findings to proved the most information possible.
Update: I have checked in the 3D client and the body's show properly it's an issue with how they display in the 2D client only.