Imported Quick3D components without a root node id dont render in 3D View

Steps to reproduce:

• import a 3D model.
• Create a 3D Scene and add the imported model to it.
• Go inside the imported model (F2).
• If the root node doesn't have an id, it doesn't render in the 3D View.
• If you assign the root node an id, it appears in the 3D View.

Expected result:
model should render in the 3D View even if its root node doesn't have an id.