Curve Noodle Collision Help

Hi,
I want to make a Physics Simulation, where I drop noodles or ropes from above.
I tried to do it like in the Quick Noodle Physics in Blender Tutorial
(https://www.youtube.com/watch?v=Lg7jxAMs60Q)
with a bezier path curve object.
And it works pretty well, but the problem is that two of them won’t affect each other.
So my noodles don’t stack up.
Can someone give me a hint?