Converting Adult to Toddler Hair, can't Extract Meshes After

I'm in the middle of converting adult hairs to toddler hairs. When I change the age settings in the warehouse tab and go to extract the modified mesh I get an error code. When I open my package after closing S4S, the mesh shows on a toddler rig, but it was just the warehouse settings changed. I haven't went ingame just yet but still I can't extract any meshes and the polys, etc, will not show in the meshes tab.