Hi! Many thanks for sharing the details! I have located the crash report you sent in. The crash seems to happen when Inventor tried saving an iam file. Also the report notes that the "WPF Message Queue" is full. WPF is a Microsoft UI framework that is used by many Windows applications. Each application only allows up to 10000 error messages (benign or not) before Windows kills the application.
Try the following to see if it helps. Go to Regedit.exe and find the following registry key.
"Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\USERPostMessageLimit" and set its value to 1000000.
The interesting thing is that the report shows that Inventor only started not long ago before the crash happened. Do you know why WPF runs so quickly? Are you running any custom add-in or non-Autodesk add-in?
Many thanks!
Johnson Shiue (johnson.shiue@autodesk.com)
Software Test Engineer