the issue is actually a Revit bug where there are two “View Filters” with the same name. However, in Revit you only see one of them, but in the backend of the file there are two. To see the other one, you need to Rename the view filter to be something different. After you rename, the other one will show up on the list as the original name.

So, to resolve for now, the user will have to try to rename each view filter to see if a double is made. If a double is made, they just need to delete one of them. If a double is not made, that filter didn’t have an issue.

Again, we are not sure what caused this and Autodesk is not able to reproduce the issue.

The next release of the BIM Manager Suite will help with this by no getting the error. Instead it will allow View filters to have more then one with the same name. Then the users can continue to use it and it will help delete the duplicate one.

Project Cleaner Error