Scene Understanding not working

Hello,

Im developing an Oculus game and i tried the bouncingball demo that came with the Oculus Integration in UNITY. before i ran the demo, i use the Oculus OS Guardian to specify the floor, and the walls of my actual real life room. Then i ran the bouncing ball demo.

In this demo Im supposed to be able to throw a virtual ball and it should bounce off the walls in my real life room, but the ball just falls thru the floor and passes thru the walls and never bounded off anything.

Does anyone know why this is happenning? has anybody gotten this to work.

I tried using Oculus Integration version 57, and 50 neither one works.

Thanks