Render Blows Up

Has anyone seen this? When I render the figure (Minami HD) at SubD resolution of 3, the render is fine. When I set the SubD to 4 it blows up. I've restarted my system, restarted Studio, Daz 4.15.02, driver current etc. Win10 current.
Thanks


Weird Render 3.png
927 x 1500 - 964K


Weird Render 1.png
927 x 1500 - 3M
Comments
Are you only sub-d-ing the figure or everything in the scene? Also why are using such a high sub-d level, there is nothing about this character that would seem to benefit from it.