I load the prop after selecting the figure (and have tried G8F hair to G8F and G8M hair to G8F) but it appears to only load the skull cap. Additionally I tried to run a simulation in case that 'activated' the hair (I was grasping at straws yes) and received the error that no dForce modifiers present in scene.
what your Daz Version? many recent Dforce hair is only for Daz 4.11 (which mean it will not work outside it), just scroll for some thread in General Chat regarding other force hair,it's have the problem solving for current Dforce hair