Help Obi cloth doing strange things

[Elsiehar]

I just want to simulate a towel on a surfboard and can't get it to work.  See video of what it looks like.  You can see that the cloth is going through the collider and it jitters at the top. It also slides off.  I have tried tethering a spot in the centre of the towel to a cube at the point of the surfboard but it still slides off (I removed this for the video).

https://360.articulate.com/review/conten...cf9/review

I am using unity 2021.3.16f1 and am using the cloth in the demo scene but I did create a brand new blueprint as advised on another forum.

Can you please let me know what I am doing wrong.

Thanks