BUG
** This issue is addressed in ArcGIS 9.0 Service Pack 2 (SP2) **
Import CAD is not getting the tagset or tagref when the file is a V7 dgn. This is only the case with Microstation files. The Tagsets and Tagrefs contain the attributes from a Microstation drawing.
Get help from ArcGIS experts
Download the Esri Support App