Sorry for the late reply. We have identified a bug in the Dynamo Connector (Send Node). As you can see here another user is experiencing the same problem.
We are already investigating and trying to solve the problem. In the meantime, you can send data and Linked models from the Revit 2.19 connector.
Can you let us know what Revit, Dynamo and Speckle Connector versions you are using?
I’ve tried to replicate the behavior on some fresh models, it doesn’t give an error anymore when I export from Revit via the Revit Connector but it doesn’t appear in the speckle viewer.
Thanks for sharing the model with us! I will have a look ASAP:
In the meantime, and because you mentioned that you are using Linked files, can you make sure and confirm that you have ticked the Linked Option under the advanced settings?
A detail I forgot to add as I’m not sure if it matters, but the 3D view I’ve set up contains no ‘local’ elements from my Revit model and only linked elements.