How to remove phantom polylines at loft?


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Can anyone advise how to remove these phantom polylines that appeared in my 3D view? (see attached) They are not in plan and show as bands hovering above my railing and entry to the spiral stair, but when I click on them they show as planes extending to the underside of roof. I am running HomeDesigner Pro 2016 and created the loft space with the "Open Below" command.

Thank you



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What you are seeing, I believe is drywall. If you select the wall as shown in your image, go to Materials and change from Drywall to Insulation Air Gap, that should fix it.


If not, please post the plan file.




It helps if we know what title (Suite, Pro etc) and version (2014, 2015 etc) you are using. You can add this info to your signature by clicking on your user name at the top right of the page, click My Settings, then Signature on the left. 



Resources for self help:


The built in Help System (always a good place to start)




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  • Solution

Thank you, Solver, it is indeed drywall.


I went into the default settings for the railing and under "Wall Types" there is a pull-down for the wall type. I had ignored that thinking it would not matter since I was defining the panels, newel posts, rails and rail style.  The default for "Interior Railing" was defined as a layer of drywall on either side of fir studs. While I can change the materials and delete some of the layers, I cannot delete the Main Layer. So I made it the "Insulation Air Gap" as you suggested and it is no longer visible. Thank you for the work around!

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