No effect from handles nor pin constraints

[Evgenius]

Works fine for me when using prefabs, too. Make sure that you apply the prefab after adding constraints, as they're stored in the rope (it's simply a serialized list of <integer, object reference> pairs)

I've tried to recreate prefab with pin constraints. It's working but in first frame it sets my object to 0,0,0 position. If I set object to kinematic, ropes go to 0,0,0 in first frame, and then spring back to object.