Can't copy playlist folder from itunes to iphone 6

Hi,

I created a playlist folder in iTunes for a single artist. I then created 60 playlists within the playlist folder for each album for that artist. It works great on iTunes because everything is organized. I want that same organization on my iPhone 6. However, when I try to copy that playlist folder with the 60 playlists to my iPhone 6 iTunes will not let me do this. ITunes tells me "No items are currently in any playlists inside this folder" and does not recognize the playlists within the playlist folder. They are there and I can play each playlist within the playlist folder.

BTW- I am using Windows 7 with the latest iTunes and iPhone software.

Help!

Thanks,

Art