I don't use transmapped eyebrows, but I remember reading somewhere that when you use transmapped hair, you have to have the gamma correction for the hair set to 1.

Before I did this the majority of the hair did not show. Seeing as you are talking about transmaped eyebrows, it sound like this could be the problem. Of course this only applies to Poser Pro.

Daz Studio 4.8 and 4.9beta, Blender 2.78, Sketchup, Poser Pro 2014 Game Dev SR5 on Windows 8 Pro x64. Poser Display Units are inches