Hi,
the drawing was created or edited with an application not based on AutoCAD, and it has proxies inside the drawing.
You can see this when you open the drawing (and have not disabled the dialogs):


By default the command -EXPORTTOAUTOCAD would help, however, not in this case.
What you could do is to load the tool zombiekiller from >>>here<<< and let the tool run through your drawing (if you have more than just this single dwg-file).
Or download my attached drawing.
HTH, - alfred -
------------------------------------------------------------------------------------
Alfred NESWADBA
ISH-Solutions GmbH / Ingenieur Studio HOLLAUS
www.ish-solutions.at ...
blog.ish-solutions.at ...
LinkedIn ...
CDay 2026------------------------------------------------------------------------------------
(not an Autodesk consultant)