Physics Shape Collision Filter and Advanced tabs

I'm playing around with the physics samples and I've noticed the drop downs for Collision Filter and Advanced on Physics Shape are not opening.

Is anyone else having the same problem or have I missed something?

Using 2019.3.0b11

Edit:
I should point out I didnt download the full repository, but instead copied the physics samples Assets folder in to a blank project and added the appropriate packages manually.

Added
Unity Physics 0.2.4
Havok 0.1.1

Using Unity Physics but also tried Havok and cannot get access to the drop downs.

 

It appears I am missing something.
A brain.
I was clicking on the drop down icon which doesnt work.

If you click on the text next to the icon it works