No layer when relative distance used
 

Hi, I was meshing a 2D airfoil and I had this problem. When I was using relative distances for the layers sHM was unable to insert any layer, no matter the combinaison use in the properties. I was able to get a good mesh using the real distance, but nothing with relative distances. Even when I turn of quality control, it doesn't add any layers, it just distort the mesh like crazy.

Could it be due to the fact that my case is a 2D case? Anyone has an idea?