Import dwg - object layer not maintain

As title description and the images below, some objects (especially Leader) don’t maintain their original layers from dwg but are moved to the current layer of Rhino.
TEST FILE 2.dwg (7.2 MB)

In CAD:

After import to Rhino:

In addition, notice that some blocks in dwg files have Clip.
After importing those clipping boundary are removed.
Is there any way to keep the block clipped in rhino, or trim automatically during the import processing?

In CAD:

After import to Rhino: