I tried to fix this on my own, I goofed (new to Mac, Windows/x86 motherboard designer for many years) during the installation and wound up with 2 libraries, then deleted the duplicate.
I have tried everything deleting Kontakt 8 in the library - the duplicates also show up in Komplete Kontrol and I don't see that in the library to delete.
When I delete Kontakt 8 folder and launch Kontakt 8 standalone, it recreates the Kontakt 8 folder but it doesn't seem like it is scanning anything, or if it is it's doing it very fast.
I have tried everything including reinstalling a couple of libraries (Cloud being one of them) too see if the duplicates went away, and reinstalling Kontakt 8 and Komplete Kontrol. Duplicates.Wont.Go.Away. I'd tear my hair out if I had any.
Can someone solve this?