Revit Families not working, crashes, no copy and paste.

[eluthrin]

My Revit seems to have completely broken. The list is long: 

1) I cannot place families into the project that already exists in the project.

1a) I cannot adjust previously working parameters for families (one example is flipping the orientation of a door gives me an error message and deletes the existing family, see attached photo 01) 

2) I cannot copy and paste polylines or groups of any sort (annotations, families, etc.) I receive an error message that doesn't allow me to move forward (see attached photo 02) 

3) Trying to edit a family from a Revit model causes the program to crash. 

These are just 3 of the many I have noticed. My colleagues can work in the model with no problem and have no issues, I have tried clearing and redownloading Revit multiple times. I am unable to do my job with these issues. Photo 01Photo 02

[ToanDN · Accepted solution]

Follow these steps to resolve the issue: 

1. Close all Revit Sessions on the affected machine. 
2. Rename the following file (instead of removing the folders listed in the solution below): C:\Users\%USERNAME%\AppData\Local\Autodesk\Revit\Autodesk Revit %VERSION%\DDGraph
3. Restart Revit. 

Alternatively: 
Copy and paste a healthy DDGraph file from another machine, where the issue is not reproducible.

If the above steps do not help, clear the content of the following folders:

• C:\Users\%USERNAME%\AppData\Roaming\Autodesk\Revit\Autodesk Revit %VERSION%
• C:\Users\%USERNAME%\AppData\Local\Autodesk\Revit\Autodesk Revit %VERSION%

%USERNAME% should be your windows login name.

%VERSION% should be your Revit version.

[eluthrin]

Thanks so much!! This worked. Can you explain what the DDGraph is? What is the root of this issue? Does it have to do with corrupted families or plug-ins? (I used Twinmotion Datasmith recently). Why was this not working for me, but not for my colleagues? Thanks again. 

[ToanDN]

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@eluthrin wrote:

Thanks so much!! This worked. Can you explain what the DDGraph is? What is the root of this issue? Does it have to do with corrupted families or plug-ins? (I used Twinmotion Datasmith recently). Why was this not working for me, but not for my colleagues? Thanks again. 

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I don't know what a DDgraph is exactly or what corrupts it tell you the truth.  I have never had the issue myself but the steps to fix it was published on the Autodesk Knowledge Network.

[mhiserZFHXS]

I've also been seeing this posted as a solution to a lot of issues lately. Hopefully Autodesk knows what the underlying issue is and fixes it for the next hotfix.

[eluthrin]

It basically deemed me useless for work the entire week. Hopefully, this can be resolved! Thanks again.