Hello all. In my project, I use Kontact 5, when I create instrument tracks with Kontact 5 everything is fine, but when I try to delete or inactive this instrument track, the N8 closes / crushes. In N7 this is not and everything works fine. Please help 
I’m having the exact same issue. Although it’s sometimes crashing when adding a Kontakt instrument too for me.
That’s sad, Crushes me too 