In case you got a problem with a file containing a custom node and you could determine the ID, you can contact the official owner of that node using the following form. However, there is no guarantee from Autodesk that the owner will reply.

Check a Node ID and contact the owner

In case you got a problem with a file containing a custom Tangent Types and you could determine the ID, you can contact the official owner of that node using the following form. However, there is no guarantee from Autodesk that the owner will reply.

Check a Tangent Types ID and contact the owner

In case you are the owner of Node / Tangent Types IDs and want to get a report on your registered blocks, you can do so using the following form.

Resend my Block IDs