Improper presentation

Hi,

We are non-regular CAD-users, we mainly use the application to view .dwg - drawings.

Recently we found that the presentation is not always proper (cf attached screenshot).

The behavior is the same on a MAC computer but sometimes the rendering is correct. So mainly the phenomenon is not 100% reproduced but of course 100% annoying...

First I though it came with the new january release as I did not observe it before... but I did a clean install with the old version and the problem is still there :/

Any ideas ?

 

Pascal