Help Dynamic attachment to fixed object with hinge component

[josemendez]

I think you are misunderstanding the image. The last part of the chain is a red link. The white part is a coupling link that is part of the hook mesh. The last particle of the chain is a good bit outside the collider.

Yes, I did misunderstood as explained in my previous message, sorry about that. Still, I'd check whether collisions are the issue, since the fact that the chain is visually outside the collider is no guarantee that the particles are physically outside the collider.

The wooden box has a mass of 1. The small hook has a mass of 0.001.

That's a 1:100 mass ratio. Unity advises not to exceed 1:10 to guarantee simulation stability. Obi has a similar limitation.

I'm not sure about the weight of the rope, I can't find out where I can see/change that value. Is it part of the solver or the rope? I can't seem to find anything related to that.

It's part of the rope. You set it per-control point in the path editor, same as all other particle data like radius, color, collision filter, etc.

As for the substeps, increasing that to 10 doesn't seem to have a positive effect. Increasing the substeps just leads to erratic behavior similar to how I described it previously (where the bottom hook starts moving around and rotating to fast it almost looks like its teleporting).

This only confirms my suspicion that collisions are the issue. Try disabling collision constraints in the solver, see if things improve. If they do, the issue is that the rope is colliding against the hook.