We have had some recent reports of instabilities in drawing view updates in Inventor R2012 resulting in some unexpected random crashes with certain workflows. The instabilities manifest under certain conditions and while iit is not a widespread issue we understand that it is still a disruption for our users.
We recommend that users apply the following hotfix so that these instabilities can be avoided.
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=17235749&linkID=9242019
Thanks
Bob
Bob Van der Donck
Principal UX designer DMG group