Bug Report R6 wip: dwg open viewport issues

Some dwg files open with a unnamed, single, floating viewport, while in Rhino 5 open with 4 Standard views.
Example file attached.

GIP-VECO-A-1010_08_01-Iso.dwg (251.8 KB)

Added to bug list: http://mcneel.myjetbrains.com/youtrack/issue/RH-30755

Thanks for reporting this.