Polyline fills in viewport / paperspace

FRUSTRATED!

Have Professional License of Draftsight 2015.

Working on drawings that were created with previous version of Draftsight (Ver 5+).

Architectural drawing, create polyline in model space and assign a width, does show width/fill.

Viewport in Sheet space does not show polyline fill, only outline, does not print fill.

Opened up a drawing created with previous version of Draftsight, several versions back and found this condition:

Model Space, polyline width (fill) does not show except for its outline.

Paper Space with Viewport, polyline shows width/fill and prints fill. JUST WHAT I WANTED.

As a test, created a new STANDARD drawing, draw polyline in Model Space, assign width, does show fill in both Model Space and Paper Space.

What gives??

Just tried something else, realized I have a free version of NanoCad 5 installed on my computer, opened my drawing and polyline width/fill shows correctly in both model and paperspace (sheet). Seems to be okay in NanoCad.

JLK