Playlists getting duplicated When I sync my iPad to my MacBook, a lot of my playlists are getting duplicated over and over again. Here is an example:



It happens to regular and smart-playlists. 

I am on iTunes 12.4.1.6.

How do I stop this mass duplication?
I had to delete the duplicated playlists from my computer and then delete the same playlists on my iPhone in order to get rid of the duplicates. Still, I have duplicates on my Macbook