Connection of an Skeletal Mesh cable on runtime to a static mesh of the parent actor

Hello,
i have a problem with a skeletal mesh with physics. I try to simulate a cable in vr.
On one point its fixed connected with the sensorhousing, we other end is connected to a grabable cone. If the cone is moved over a cableclamp the cable should be fixed to the clamp.
As the cable is part of the same blueprint the attach to node causes a crash, so i tried the physic constraint.
It works on the low end there the connection to the housing is and roughly good at the connection to the cone.
but if i change it with set constrained Component (The Cone constraint to the cone without cable) and the cable to the clamp constraint, the cabel is just falling down to the force of gravity.
Has someone an idea how to fix it? I also tried to use the bone field and typed in the upper bonename but it dosent change a thing.
iam struggeling on this the past 6 hours and tried pretty much on the parameters.
That screenshots or information do you guys need?