Pieces of my drawing vanish when I zoom in paperspace

[sms0509]

I have two viewports showing different angles of the same 3D drawing. When I zoom in on the screen, one piece of the drawing appears in one viewport, and disappears in the other. I attached two screenshots of the problem. I've tried "regen" as well as restarting both AutoCAD and my computer. Is there anything I can do?

I'm using Autocad 2015 for Mac.

Thanks!

[maxim_k]

Welcome to Autodesk Forums!

Hi,
If you will change Visual Style in viewports - is the problem still here?
You can also try to recreate viewports.
If you can - please attach your drawing here, I will look at it on my Mac.

Maxim

[sms0509 · Accepted solution]

So the next time I opened it, AutoCAD told me I had errors and needed to recover my drawing. I did that, and the problem seems to have gone away. Thanks for your help, though!