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I was working in layout with simple 3D model and suddenly Fatal Error. I use computer "Dell Precision T3610", program AutoCAD 2015. All the steps you can see in video. Error appears at time 1:04:23.
https://screencast.autodesk.com/main/details/7b565514-59e2-4a3a-abe0-ea020031dc69
The workflow is shown in video. If repeating the same steps problem does not appear so the problem could be in the file.