Thank you, Nicobass for your help! The physics of the hair is definitely better now!
But my problem sadly was not fixed by this 
Everything is fine when I simulate physics in her physics asset thing, but ingame it looks like her second
(I discovered it’s always the bone after the kinematic set bone) hair bone wants desperately to get into her
backpack D:
physics test:
ingame:
I’ve set everything to your settings which I could see in your screens. Why is that happening?