Materials List Polyline Area includes everything except vertical studs in report.

[DIYJon]

Just to test the polyline feature, I created an area over a dividing wall and calculated.  I get results in the materials list for just about every part of the walls except the upright studs.  I get Blocks for the block wall, headers for the door, stucco, running bond, but no studs under framing.

 

Any ideas?

 

Here's a short video of the problem.

Edited May 24 by DIYJon
Add video link.