FreeCAD is incorrectly rendering an ARCH Structrure.
The two following pictures illustrate the problem. The first picture, called Front-Top-View, shows an ARCH Structure object called Ramp. In this picture the object is fully visible. The view is from the front-top perspective.
In the second picture, I changed the view to the front perspective, and parts of the Ramp object disappeared.
The version information for FreeCAD is
OS: Ubuntu 18.04.2 LTS (Unity:Unity7:ubuntu/unity)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.16885 (Git) AppImage
Build type: Release
Python version: 3.7.1
Qt version: 5.6.2
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)
How can I work around the problem? I would like to print a correct picture.
The url for the model is
https://www.dropbox.com/s/chk6lul2lgcpw ... FCStd?dl=0