Strange orbiting/swinging motion with Object Bind.

[Findus]

Can someone explain to me what is going on in this example file, please?  (using 1.127 and max 2023)


The particles of Event_001 (pink) aren't bound to each other. (I double checked with the collision box as it looked like they might be without it).
However, they do seem to orbit/swing around the cylinder of the Object Bind (set to surface) despite being way outside of the Proximity Influence.
Additionally, they seem to hit a wall around x=0 when "swinging" back.

This happens with Sticky Connections, the springs behave as expected at first sight.
And if I activate Particle Binds as well, the particles are going nowhere, which is also unexpected (to me).
Very likely I'm misunderstanding something here or did something wrong, I just can't figure it out.

[Findus]

I guess "Sticky bindings constrain particles to consistent distances from their target surface." as well as "Make parallel to closest point" for velocity would explain the orbiting motion.

And that direction might flip depending on calculation, possibly explaining the wall at 0. Verlet integration (selected alone) doesn't seem to have that problem.


So the Proximity Influence only applies to Friction, then, as the particles assume they are stuck to the surface in any case.