Great suggestion @idialab. I've just hit this as a problem and it's so frustrating!

I've added a ticket to the Feedback tracker. Go vote on it :)
https://www.reallusion.com/FeedBackTracker/Issue/Exported-GameBase-characters-need-Sub-Surface-Scattering-maps-included-in-texture-folder

                                    

Unity Virtual Reality Developer

Hello,
I was wondering if the Subsurface scattering textures can also be exported with a CC3 model that has been converted to Gamebase mode. I'm assuming the answer will also be the same with any Gamebase  InstaLOD's merging of textures, whether by Type or Object?

Also, is there any way to get the 'eyelash' texture merged to the same 'hair' texture?
Thanks