Hi I'm working in Revit MEP 2010 with a linked architectural model. Last time I updated the model I had multiple errors telling me that some of the instances were not able to be placed, and that I would need to delete them to continue. After looking at the old model, I realized that all of the instances were receptacles on curved walls, that the Architect had deleted and modeled straight in the update. Other straight walls had been deleted also, but all of the receptacles on those walls were still in the model (hanging out in space). This is what I would expect to happen with a face based family whose host was deleted. Anybody know why this doesn't work with curved faces?