Physics and TransformNode parent

Questions
1

A mesh with a TransformNode parent won’t work with physics? Demo:

2

There is a special flage to ignore parents in this case : https://playground.babylonjs.com/#WKWWSC#1

else the parent would also need its own imposter

3

I’m doing more tests. I now have problems with scaling:

4

@RaananW might have an idea about this one ?