Model picking error in Dynamo

When the Inventor model is imported into Revit, the model can be displayed normally, but in the process of entering Dynamo, the model chamfer part, which is picked up from Revit, becomes a circle, and can not continue the later operation

Can you share a stripped down version of the Revit file (post inventor import) so we can test out the behavior?

This is a known issue. Dynamo still doesn’t handle the conversion of revolved faces well: