Important! Willow hair mesh!
TeXaSrOsE has pointed out an animation problem with my Willow hair mesh. The problem affected the adult mesh (young adults through elders). If you have downloaded this mesh and want it to show up correctly for all ages, please redownload the mesh file here:
http://www.thesimsresource.com/downloads/sims2/meshes/hair/591198/
Many thanks to TeXaSrOsE for drawing my attention to this!