Help! "Cannot export the 3D view: An item with the same key has already been added." Cannot solve this error

Development Pipeline & Plugins
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1

I am unable to export a 3D view to twinmotion using the Revit 2023.1 integrated Twinmotion/datasmith plugin. This only applies to one of my projects. The others still work. I used to be able to work in this project and had it operational and now this.

Full error code below:

Cannot export the 3D view:

An item with the same key has already been added.

at Autodesk.Revit.DB.CustomExporter.Export(View view)

at DatasmithRevitExporter.DatasmithSyncRevitCommand.ExecuteFunc(ExternalCommandData InCommandData, String& OutCommandMessage, ElementSet OutElements)

2

Hello RemickArch, were you able to resolve this issue yet?

3

Hello @RemickArch, were you able to pinpoint where the error generated?

4

I was unable to resolve this issue. I had to abandon the twinmotion model for this project.