Why is the Canvas not showing up on device in ARFoundation using URP?

I have a simple AR app using ARFoundation 4.2.3 and URP 12.1.6. The image tracking works well but all the interfaces that i setup in editor (where it works well) on device are not showing up. It seems that they are hidden by the ARbackground Renderer feature since in the standard pipeline I can see all the elements.

I tried with a overlay camera on the ARCameraStack but it doesn t work. I tried also with the renderer feature "Render object" with the layer UI but the problem remains.

The canvas is in overlay mode, but also in camera space i have the same problem.

The device is a Pixel 6.

Unity 2021.3.2

Thank you for your time.