So I downloaded a beautiful anime base from ALexzart on Sketchfab
But when I wanted to add bones to it and animate it, it completely messes up the body. When I move the arms, it moves the head too. I really don't know what to do now.
This doesn't just happen to this model, it happens to models I made myself too. Is there a setting I accidentally changed? I tried to load the default settings, but it keeps on happening.
I also tried to solve it with weight paint, but that messes up the body even more.
Thanks for reading and I hope someone can help me