Tutorial: Making Displacement Maps and Shave & A Haircut Work Together in Maya
Why, when you're using the misss_fast_skin shader and Shave & A Haircut does Maya crash at render time? After several hours of research, I finally found the answer on Digital Tutors.
I hope this video shortens that search for others.
Once you work more with the hair, this problem CAN crop up again. If it does, re-open the hypershade and bring up the body's shading network. Select the skin shader node and the shave node, and click the input and output connections button. That should re-repair the problem. It's been working for me, anyway.
One other thing that might help is going into Shave Globals (under the Shave menu) and change "Buffer" to "Hair Primitives."
And remember, save regularly, and definitely save before you render!