Some objects are missing from the exported DXF.

Objects are missing from the exported DXF

If you find out that some objects are missing from the exported dxf, please check below and try again.

Check objects

abd try agaiub it shoule mean that objects which were on locked or in invisible layers were not be exported.
In order to solve the effor, please ensure to unlock subject objects and show them before you try exporting.

You can also refer below posts for other exported errors :

The exported DXF is missing.