A Few Obi Collider Issues

[Skotty]

I was experimenting with a rope tethered on one end, with a loose rigidbody attached on the other end.  Then I had a mesh with a big hole in it that I added an Obi Collider to.  I pushed the rigidbody through the hole and it fell through pretty normally.  But then if I start moving the rigidbody it can start to cut through the mesh collider of the model with the hole.

This can seemingly be fixed by adding an Obi Rigidbody to the rigidbody (had to tinker with collision categories so rope wouldn't freak out due to having the end embedded in the rigidbody object, putting them on different categories), and then also setting the attachments dynamic.  I assume that is the correct procedure.

I'm still having issues with initialization though.  Even though the entire rope is suspended above the mesh with the collider before starting, after going into play mode sometimes part of the rope is stuck inside or beneath the mesh with the hole in it.  How to I avoid this reliably?

   

Thanks for any tips,

EDIT:  I added a couple of screenshots for reference.  Put them together in one image as I was having trouble getting it to accept attachments.  One is the layout as it looks in the editor.  The other is in play.  The rope has moved a bunch from it's starting position and part of it has embedded in the mesh beneath it.

- Skotty