Lorena Lodeiros

I have problems only on the design layers of this one specific document. When I zoom in and out or move the plan view, it looks the right way, but when I let go, the image looks distorted. Some symbols, geometric figures, and sometimes walls change their shape or disappear in the view. Even some walls have changed position. I am also not able to move or edit the distorted objects. I use Vectorworks 2017 (the german version) in a Surface Book 2 with Microsoft Windows 10 Pro, Intel Core i7, 8GB RAM, and NVIDIA GeForce GTX 1050. I have restarted the computer and the graphic card itself, but the image looks still distorted. Why could this be happening, and how can I solve it? Here I attach two images. The first one looks distorted and has two crooked walls. On the second one, I tried to correct the bathroom walls (in a distorted view), and, as I click and hold, all the symbols and shapes look the way they should.

I have resently started editing the plans from an already existing project. It seams to be like the plans were all basically done in the layout layers. As I work on the sections and elevations I edit them in the viewports from their respecting layouts, sometimes by design layer but most of the times over them, where everything seams to have been finished. I have changed the 3D but the sections and elevations appear the same in the viewport, and the problem is that these lines and objects I cannot select to edit them. Is there a way I can see where these objects are so I can edit them? Thank you for your help. Kind regards, Lorena Lodeiros