Civil 3D 2023, Revit 2023, Autodesk Desktop Connector 16.3 are installed, the ACC account has full permissions, ACC project exists.
"Sharing Topography between Revit and Civil 3D" as described in the HELP is applied. I used it already many times.
Now in Revit I always receive the error message "The topography data does not contain usable surfaces" (see attachment).
It worked fine till last month, I still have the .shared.dwg. The workflow works with the old data.
Now it does not work anylonger, I tried different ACC's, old Desktop Connectors, etc.
I have no more ideas, what to do ... .
