“Cannot save back changes because objects in the working set reference objects outside of the working set. The Refedit session is still active. Press F2 after dismissing the dialog to see the list of missing references.”
This can happen with any Cloud based storage. Example Microsoft One Drive.
Note: command line may mention AcDbZombieobjects (Zombie Objects).
- Corrupted External Reference.
- Corrupted Objects from various applications “Zombie Objects” (example Ghost Parcel Civil 3D).
- Refedit commands in use.
- Fix the corrupted file.
How to repair corrupt AutoCAD fileshttps://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/AutoCAD-File-Corruption.html
How to repair Civil 3D drawing showing signs of corruption
- Use “Zombie Killer” app to clean the “Zombie” Objects out of the file. This application was developed to deal with these types of Objects.
- Make sure you have existed all External References command.
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