Hi, 
   	I am trying to simulate a thermal ablation, where the antenna and tissue is touching each other. I am getting  ERROR 3848: Wrong specification of the medium for a wire segment.
      	However, when I set up the antenna and tissue apart I am not getting the error. As I understand this error occurs when meshing 2 touching objects with different materials. I am not sure how to fix it. Any help is much appreciated 
   	  
   	Thanks