https://forums.autodesk.com/t5/revit-architecture-forum/render-issue/m-p/7806285#M242295 <P>select the black walls and click space. (Flip the wall) your interior is exterior.</P> Sat, 24 Feb 2018 21:57:24 GMT MostafaElashmawy 2018-02-24T21:57:24Z https://forums.autodesk.com/t5/revit-architecture-forum/render-issue/m-p/7806261#M242294 <P>&nbsp;</P><P>I have the same wall throughout... why are the materials only showing up in some places and not others?</P><P>&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="RenderIssue.JPG" style="width: 705px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/467341iC0EE3DCFBCEF27E4/image-size/large?v=v2&amp;px=999" role="button" title="RenderIssue.JPG" alt="RenderIssue.JPG" /></span></P> Sat, 24 Feb 2018 21:38:54 GMT https://forums.autodesk.com/t5/revit-architecture-forum/render-issue/m-p/7806261#M242294 Anonymous 2018-02-24T21:38:54Z https://forums.autodesk.com/t5/revit-architecture-forum/render-issue/m-p/7806285#M242295 <P>select the black walls and click space. (Flip the wall) your interior is exterior.</P> Sat, 24 Feb 2018 21:57:24 GMT https://forums.autodesk.com/t5/revit-architecture-forum/render-issue/m-p/7806285#M242295 MostafaElashmawy 2018-02-24T21:57:24Z