Hello Steve, thanks for posting your video. Now I see the problem better.
I installed AECOsim and pattern on the walls section disappeared when did zoom. (Video stair1). The first question: why lines disappear when zooming?
I tried every Nvidia driver to resolve the problem. I did not find a good result. Only resolved with compatibility AECOsim =Windows XP. Now the section pattern is correct and not disappear when zooming , but this causes the problem that the stairs are not see in the plan.
In the video stair2, you can see that appears the stair in the plan, but is blocked and therefore does not appear, but what can it be?
This problem does not occur with BA 08.11.07.87, only occurs AECOsim (on the same computer with Windows 7 64).
The big problem is: why some lines desaparecen con AECOsim?. Knowing this would solve all problems.
Thank you for your help.
Video stair1 AECOsim not compatibilty with Windows xp (default install)
Video stair2 AECOsim compatibility with Windows xp