augmentations shown even if not children of ImageTarget

Hi all,

I'm using Vuforia inside a Unity scene.

My scene contains a root node, under which there are two children added at runtime.

The first is a canvas prefab containing all the UI of the app.

The second is a prefab containing the ImageTarget.

At runtime I also add some augmentations, which I place on the ImageTarget by calculating the position dynamically.  I do not set these augmentations as children of ImageTarget, but magically they are rendered correctly and firmly anchored on the ImageTarget.

I checked ImageTarget children and augmentations parents at runtime with breakpoints in the code, and they are always 0 and null respectively.

Can someone explain me this strange behaviour?

Thank you

Fabio