Excessive group definitions--when opening a dwg file, or opening a V8 file with a DWG referenced, there is a warning in the message center "An excessive number of group definitions (7757) was encountered. These definitions are assumed to be invalid and have been ignored to insure acceptable performance."Version: 08.05.02.35Product: MicroStation V8 2004 EditionArea: DWG-Open
These groups were generated by an application running on top of/with Acad and they can only be accessed or used by this application. These are not proxy elements, these are application created groups (in most cases Acad does not currently display these either). Rather than spending time reading thru these groups, MicroStation will ignore them (thus giving you the warning in the message center). By doing this it speeds up the update time for opening the files.