3D Body Tracking with arfoundations-samples-master not rendering robot

Hi there!

I've been searching for an answer to my question but sorry - couldn't find anything.
Recently I downloaded the mentioned arfoundations-samples and tried to build scenes from it to test the possibility of using it for medical purposes.
Unfortunately I couldn't even use the samples. I can build an app, the camera is there - but either the body is not detected or the skeleton not displayed. I just see myself on the screen (which I do stream to my pc so I can see myself while the camera is filming).

Here are my specs:
- Unity 2019.2.12f1
- Phone is Google Nexus 6p with Android 8.1
- Packages: AR Foundation Preview 6 3.0.0, AR Subsystems Preview 4 3.0.0, AR Core XR Plugin Preview 4 3.0.0
- Tried also to deactivate Multithreaded Rendering inside Player Settings / Other Settings

Didn't modify the samples at all. I tried to reproduce the 2d body tracking, same results though. All tests were run on my Nexus since no camera on pc is working (right?).

Thanks for any hints!

 

And unfortunately I can answer the question myself: Body tracking is not in ARCore yet.