Exporting DWGs and my curtain wall disappears.

[iausesthis]

When I export the sections to dwg, the curtain walls disappear. I found someone asked the question before, and someone said to refer to this as ARCH-7182.
I can't find a way to fix this though. Is there a way for me to fix this?

Thanks in advance everyone!

Operating system used: Windows

[Ola Zawada]

Hey, make sure to use the Publisher Set every time. You probably used the Marquee tool.