Crash when copy & paste elements between Revit models in Revit

Autodesk Support

Jun 14, 2024

Products and versions covered

Issue:

Users reported when copying and pasting elements between models in Revit, the following error is encountered and then Revit crashes with CER (Customer Error Report):

Autodesk Revit ####

Error - cannot be ignored
A serious error has occurred. It is strongly recommended that you use Save As to save your work in a new file before continuing.
"A serious error has occurred" error in Revit
Users may also receive the following error:  "An unrecoverable error has occurred.  The program will now be terminated.  All of your data has been recently saved, so there is no need to create recovery files."
"An unrecoverable error has occurred." in Revit


Additionally, the crash may occur in the following situations:
  • Editing the family type of an element. 
  • Changing parameters in the family.
  • Duplicating view with or without detailing.
 
 

Environment:



 

Status:

This incident has been resolved in:

Revit 2023.1
Revit 2024

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Workaround:

Rename DDGraph

  1. Close all Revit Sessions on the affected machine. 
  2. Rename the following file: C:\Users\%USERNAME%\AppData\Local\Autodesk\Revit\Autodesk Revit <Version>\DDGraph
  3. Restart Revit. 
Alternative Option: Copy and paste a healthy DDGraph file from another machine, where the issue is not reproducible.
 

Reset Revit to Defaults

If renaming DDGraph doesn't clear the error, go through the following steps to reset most of Revit's settings/options to default values:
  1. Close Revit (if open).
  2. Find each of the following locations on your system, and rename the folder by adding “_Backup”:
  • C:\Users\%USERNAME%\AppData\Local\Autodesk\Revit\Autodesk Revit <Version>
  • C:\Users\%USERNAME%\AppData\Roaming\Autodesk\Revit\Autodesk Revit <Version>
  • C:\ProgramData\Autodesk\RVT <Version>
  1. Launch Revit (the folders renamed should be recreated (using default values).

Products:

Revit Product Family;

Incident ID:

195727

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